NAME: ACCELERATED MATH 1-2-3 ALGEBRA I REVIEW PACKET DUE DATE: This packet contains review problems for all of the algebra topics taught in the Accelerated Math course during the freshman year. Please spend some time each week over break working these problems. About a week after school starts in July, there will be a test over the problems in this packet. The point of doing these problems is to solidify the concepts in your flipchart into your brain! For any applicable problem, you MUST SHOW WORK in order to receive credit! CLASSIFYING NUMBERS List all of the groups each number belongs to… 1. –4 2. 0 3. 4. 4. 5 6. –2.487 7. –2.487… 8. –5 9. 5 8 5. 56 10. 4 DISTANCE Find the length of the line segment with the given endpoints… 11. (4, 5) and (-2, -7) 14. (-2, 1) and (3, -4) Shelley Ceinaturaga [email protected] 12. (0, -2) and (5, 1) 15. (6, -1) and (5, 2) 1 13. (-1, -1) and (4, -4) 16. (6, 5) and (3, -4) EXPONENT RULES Simplify each expression… 1. 3x 2 4 y 2 (2x )2 2. (3x 2 )(4 y 2 )(2x )2 3. (3x)2 (4y)2 (92 1st ) 4. (2x 4 y 3 )2 (3x 3 y ) 3 5. 2x (3x 2 4 y 2 ) 6. 5b 5 6b 7 7. (2x 2 y )2 (4x 3 )2 12x 3 y 5 8. 4x 2 y 9. 10. (2x )(3x )2 (4 y )2 11. (8 y 3 )( 9y 2 ) 12. 2x 3 ( 3x 2 2x 5) 13. (x 5 y 8 ) 3 14. 16. (2x )(5x 2 ) 2 4x 3 (12x 3 )2 19. (2x 4 )2 Shelley Ceinaturaga [email protected] (3x )2 (x 5 y 8 )2 17. (3a 4 )2 (2a 4 )3 20. (2𝑥 5 )(5𝑥 3 )2 2 ( 2𝑥 3 𝑦 6𝑥𝑦 3 −2 ) 15. 4x 3 (3x 2 ) 3 18. 5x (3xy ) 21. ( 𝑎10 𝑦 5 𝑎−3 𝑦 8 −2 ) FUNCTIONS-FINDING THE DOMAIN AND RANGE Tell whether each relationship is a function. If it’s NOT, tell why not. If is IS, give the domain and range. 1. 2. 3. For each relation, write F if it’s a function, and NF if it’s not a function. 4. {(1, 2), (2, 2), (3, 2)} 5. {(-1, 0), (0, 1), (1, 2), (2, 3)} 7. {(1, 7), (2, 5), (3, 6), (2, 4)} 6. {(2, 1), (2, 2), (2, 3)} 8. {(0, 1), (-1, -2), (-2, -3), (-3, -4)} Fill in the blank to… a. make the set a function b. make the set NOT a function 9. {(3, -3), (-10, 4), (6, 0), ( a. ( , ) , )} b. ( 11. If f(x)=-𝑥 2 + 5𝑥 − 10 10. {(0, 7), (7, 0), (-9, -7), ( , ) a. ( −𝑥 2 +2 12. If g(x)= 𝑥−4 , ) , b. ( 13. If h(x)=3-5𝑥 2 find f(-4) find g(-4) find h(-4) find f(0) find g(0) find h(0) Shelley Ceinaturaga [email protected] 3 )} , ) LINES-GRAPHING Answer the questions… 11. How would the graph of y 2x 1 change if the constant term was changed to 5? 12. How would the graph of y 2x 1 change if the coefficient term was changed to 5? 13. What would need to change in the equation y goes from left to right? 3 x 4 so that the line would rise as it 4 14. How would the graph of y 4x 3 change if the coefficient of x was changed to become –3? LINES-GRAPHING (cont.) Find the x- and y-intercepts for the graph of each function. 1. 3x 4 y 24 2. y 2x 4 3. y 4 4. y 4 x 2 16 What is the equation of a line with… 5. an undefined slope through (5, -4) 6. with slope = 0 through (5, -4) 7. a slope of ½ and through (5, -4) 8. with slope = 0 through (4, -1) Graph the line… 9. 3x+3y=15 10. 2x 3y 12 Shelley Ceinaturaga 4 [email protected] 11. 4x 6y 12. x 3 13. x 3y 21 14. 4 y 8x 12 Shelley Ceinaturaga 5 [email protected] LINES-GRAPHING (cont.) Write the equation of each line… L3= L7= L5= L2= L1= L8= L4= Shelley Ceinaturaga [email protected] L6= 6 LINES-SLOPE Find the slope for each situation below… 1. between the points (-4, 5) and (5, 10) 2. slope of the line y=4 3. slope of the line 4x 9 2y 4. slope of the line containing the points (-2, 5) and (-2, 6). 5. of this line: 6. X Y -1 5 -1 10 -1 11 7. The line containing the points (-4, 3) and (6, 5) 8. 3x 5y 21 9. The line containing the points (5, -8) and (6, 12) 10. x 5y 20 x Find the slope and the y-intercept of the graph of each equation… 11. y 2x 3 12. 13. x y 1 14. 15. 3x 4 y 12 16. 3x 6y 18 Shelley Ceinaturaga [email protected] 7 y x 4 2x 2y 5 LINES-SLOPE (cont.) Find the slope between each pair of points. 1. (-5, 1) and (-8, 13) 2. (-5,- 2) and (4, 0) 3. (11, 3) and (22, -4) 4. (2, 1) and (12, 5) 5. (3, -6) and (3, 10) 6. (4, 14) and (4, -4) LINES-WRITING AN EQUATION FROM A TABLE Write an equation for each table. x 0 1 2 3 7. 10. 13. X -2 -4 -8 Y 12 15 18 21 Y 4 6 10 x -5 0 2 4 8. x -5 0 2 4 Y 16 1 -5 -11 11. x -3 1 5 3 Y 8 -4 -16 -10 Y ½ 3 4 5 Shelley Ceinaturaga [email protected] 14. x 1 -2 3 6 Y 5 -10 15 30 8 9. x 1 -2 3 6 12. 15. x 1 -2 3 6 Y 2 -10 10 22 Y 5 -10 15 30 X -4 0 6 Y 6 4 1 LINES-WRITING AN EQUATION FROM A TABLE (continued) Follow the instructions: STORY: In a race, Charlie has a 12 m head start, but unfortunately, he gets confused and runs the wrong way at 4 meters per second. RECURSIVE ROUTINE: EQUATION: TABLE: 0 5 10 15 GRAPH: USE THE EQUATION TO FIND: *Where is he after 12 seconds ? Find the x- and y-intercept for each equation. 1. 5x-3y=30 2. 2x+y=9 3. y=x 4. y=2x+3 Shelley Ceinaturaga [email protected] 9 LINES-WRITING AN EQUATION FROM SLOPE + ONE POINT Find the equation of the line through the given point with the given slope. 1. m = 4 ; through (-1, 5) 3 16 3. m = 0; through ( 3 3 2. m = 5; through ( 2 , 0) 4. m = undefined; through (4, -3) , −9) LINES-WRITING AN EQUATION FROM TWO POINTS Write the equation of the line passing through each given pair of points. 5. (-2, 10) and (3, -5) 6. (-4, -3) and (6, 2) 7. (-4, 7) and (3, 7) 8. (-12, 1) and (-12, 4) 9. (5, 2) and (-5, -2) 10. (-1, 5) and (2, -1) 11. the y-intercept is 5 and the x-intercept is 2. Shelley Ceinaturaga [email protected] 12. 10 3 −1 (2 , 0) and ( 2 , 4) LINES-WRITING AN EQUATION FROM TWO POINTS (cont.) Write the equation of the line passing through each given pair of points. 1. (-23, 1) and (5, 1) 2. (4, 5) and 4, -12) 4. (-1, 4) and (-4, -5) 5. 1 3. (3, 1) and (9, 5) −3 (2 , 2) and ( 2 , 4) 6. (-3, 4) and (-5, 8) X- AND Y-INTERCEPTS OF LINES Write x-intercpt and the y-intercept of the graph of each equation below. 1. 2x - 5y = 20 2. 4x + 6y = -24 3. 9y = 3x + 45 4. Y = -3x + 8 MIDPOINT Find the midpoint between each set of points. 1. (-4, 2) and (0, 8) 2. (4, 3) and (-2, -1) 3. (5, 1) and (-3, ½) Segment AB has midpoint M. Find point B if point A has the given coordinates. 4. A=(-2, 3) and M=(5, 6) Shelley Ceinaturaga [email protected] 5. A=(-1, -1) and M=(10, 12) 11 6. A=(5, -3) and M=(2, 6) MULTIPLYING BINOMIALS Write each equation in standard form… 1. y (x 4)(x 5) 2. y (2x 6)(x 3) 3. y (2x 6)(x 3) 1 4. y (x 4)2 9 2 5. y 4 7x 2x 2 6. y 2(x 4)2 3 7. y (x 4)(x 5) 8. y (x 4)(x 5) 9. y (x 3)(x 3) 1 10. y (x 6)2 3 3 11. y (2x 1)(x 4) 12. y (2x 1)2 PARALLEL LINES Find the equation of a line that’s PARALLEL to the given line and goes through the given point. 1 x 7 through (2, -5) 3 13. Parallel to 6x + y = 4 through (-2,3) 14. Parallel to y 15. Parallel to 4x + 2y = 8 through (1,3) 16. Are these lines parallel, perpendicular, coinciding, or none of these? 2x y 5 8x 4 y 20 Shelley Ceinaturaga [email protected] 12 PARALLEL LINES (continued) Study the graph shown and answer the following questions… 1. Write the equation of a line that is parallel to this line but goes through (0, 2). 2. Write the equation of a line that is perpendicular to this line but goes through (0, -4). PERPENDICULAR LINES Find the equation of a line has the given information. 3. perpendicular to y = 3 x – 6 through (3, 4). 4 4. Perpendicular to 3x+8y=4; through (0,4) 5. Perpendicular to y=3x-2; through (6,-1) 6. Perpendicular to 5x-3y=7; through (8,-2) PROPERTIES OF REAL NUMBERS Rewrite each expression to demonstrate the propery asked for... 1. 2. 3. 4. 5. 2a + (5-6a) =_______________________Associative Property of Addition 4 + (2 (2 +8) = _____________________Commutative Property of Addition (10)(4) + (10)(7) = ___________________Distributive Property of Multiplication over addition 4(5∙8) =___________________________Associative Property of Multiplication 4(5∙8) =___________________________Commutative Property of Multiplication Tell which property is being demonstrated for each statement below… 6. 5 ∙ 0 = 0 7. 5 + 0 = 5 Shelley Ceinaturaga [email protected] 8. 5 ∙ 1 = 5 13 9. 5 ∙ 1 5 =1 QUADRATIC EQUATIONS-GRAPHING Tell whether each parabola will open UP OR DOWN and HOW IT WILL BE TRANSFORMED from the graph of y x 2 .Make a rough sketch for each equation. Include the vertex, line of symmetry, and two other points using the stretch factor. 1. y 2x 2 3 2. y (x 4 )2 2 3. y 2(x 3)2 4 4. y (x 4 )2 Graph these equations and tell the x-intercepts, y-intercept, LOS, vertex, and include 5 points. 6. y x 2 2x 8 5. y (x 4)(x 5) Shelley Ceinaturaga [email protected] 14 QUADRATIC EQUATIONS-GRAPHING (continued) Graph these equations and tell the x-intercepts, y-intercept, LOS, vertex, and include 5 points. 1. y x 2 3x 10 2. y x 2 10x 21 Find the x-intercepts of the graph of each equation shown below. 3. y (x 4)(2x 5) 4. y x 2 10x 24 5. y x 2 5x QUADRATIC EQUATIONS-SOLVING Solve for x in each equation below… 6. 3x 2 75 7. (x 5)2 12 156 8. 2x 2 5 7 9. x 2 x 20 0 10. x 2 3x 10 11. 2x 2 3x 4 Shelley Ceinaturaga [email protected] 15 QUADRATIC EXPRESSIONS-FACTORING Factor each expression… 1. x 2 49 2. x 2 2x 35 3. 5x 2 20x 20 4. 4 x 2 12x 9 5. 2p 2 2p 4 6. 3x 2 2x 5 7. 4x 2 17x 4 8. 15x 2 27x 6 RADICAL EXPRESSIONS-SIMPLIFYING Simplify the following expressions (“take out the twins or triplets!”) 9. 81p 4 r 6z 3 13. (3 2x 2 )3 10. (144 x 10 y 16 ) 14. 3 200n 6 11. 15. 3 3 125a 30b 3 484 12. 1000x 6 y 9 16. 4 44x 6 y 5 SEQUENCE NOTATION 1. What are the next three terms in the following arithmetic sequence? 1, 5, 9, 13….. 2. Using the sequences 1, 5, 9, 13…., find the 10th, 20th and 25th term in the arithmetic sequences. 3. Which equation represents the rule when finding the nth term of the sequence below? 2, 8, 18, 32….. a) an =n+1 b) an =n2+1 c) an =2n2 d) an =2n+1 4. Using the formula and sequence from question 3, find the 10th term in the sequence listed above. Shelley Ceinaturaga [email protected] 16 5. Using the geometric sequence formula, what are the next three terms in the sequence below? 4, 20, 100, 500….. 6. Sequence application: A Hamilton High intern was offered a starting salary of $10,000, with an annual raise of $500. What will her salary be after 10 years? For questions #7 & 8, find the first 4 terms of the sequence. 7. A1=7 For n> 1, An= A(n-1) -5 8. A1=-12 For n> 1, An= A(n-1) +5 9. Find the 3rd & 4th term of this sequence. A1=-2 For n> 1, An= 2A(n-1) +5 SIMPLIFYING EXPRESSIONS Simplify each expression… 17. 3x2 + 3y – (5 – 5x2) 18. cd + 5cd 19. 4 (2x 3) 20. 3x (3 4) 2(2x 1) 22. 5x x 21. 4x (x 2) 2(3x 1) SOLVING EQUATIONS-ABSOLUTE VALUE Solve each absolute value equation… (how many answers should you get for each?) 1. 2 x 1 = 15 Shelley Ceinaturaga [email protected] 2. 2x 4 8 20 17 3. 2 x 4 4 6 4. m - 4 = 3 5. 3a 5 20 6. 2 + 5x 2 + 5 = 16 SOLVING EQUATIONS-CONTAINING SQUARE ROOTS Solve each equation below… 7. 2 2x 1 5 19 8. 2 5 4 x 9. 2 x 1 3 13 SOLVING EQUATIONS- INCLUDING THOSE WITH FRACTIONS Solve each equation below. 10. x x 5 3 2 11. x 14. 5x 7 3x 17. 2 1 x 10 x 3 4 15. 18. x 7 2 8 3 (x 5) 2 2 x 4 2x 5 3 Shelley Ceinaturaga [email protected] 12. x 3 1 8 4 8 16. 5(x 3) (x 2) 5(x 1) 1 19. 14 3(5x 12) 1 (20x 1) 18 SOLVING EQUATIONS- INCLUDING THOSE WITH FRACTIONS (cont.) Solve each equation below. 20. x 1 2x 2 5 3 23. 5x 7 3x 21. 2x 4 2 5 24. 22. 3(4x 12) (2x 3) 4x 1 3 (x 5) 2 2 25. 1 k=8 4 SOLVING A FORMULA FOR A SPECIFIC VARIABLE Solve each formula for the indicated variable. 1. S DT , for D 2. I PRT , for T 3. y mx B , for y 4. y mx B , for x 5. Ax B C , for B 6. y mx b , for b A SOLVING INEQUALITIES Solve and graph each inequality… 2. x y 3 1. y 2x 3 Shelley Ceinaturaga [email protected] 19 SOLVING INEQUALITIES (continued) Solve and graph each inequality… 1 2 3. 3x y 6 4. x 3 4 5. 4 2(3 2y ) 6y 20 6. 7. 12x 8y 16 8. 4x 3y 6 Shelley Ceinaturaga [email protected] 20 3x 6 4 SYSTEMS OF EQUATIONS ALGEBRAICALLY Solve each system of equations. Remember to give your answer as an ordered pair… 1. y = x-3 2x + 5y = 7 2. 3x + y =5 3x – y = 7 3. 10 = 5x – 9y 12 – 2x = 3y 2. 6x – 3y 4x + 2y = -8 5. x + y = 6 2x – y = 12 6. 3(x – y) = 15 2x + y = 7 7. Y = 2x + 1 3x + 2y = 16 8. Y = 3x – 19 y=x+1 9. 5(5x – y) = x + 20 3x + 8 = 4x – 2y SYSTEMS OF EQUATIONS BY GRAPHING Graph the system and state the solution. 2𝑥 + 𝑦 = 7 −3𝑥 + 2𝑦 = 0 𝑥+𝑦 =5 −2𝑥 − 𝑦 + −4 4. { 5. { x y 2 6. 4x 2y 4 7. Shelley Ceinaturaga [email protected] 6x 9y 27 8x 12y 36 21
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