REVIEW FOR FALL FINAL –It`s to your benefit to complete this

REVIEW FOR FALL FINAL –It’s to your benefit to complete this review for your final.
1. What is the slope of the line? (Find two good points and use rise/run)
2. What is the y-intercept of the line graphed in # 1?
3. Find the slope of the line through the points (-3, 5) and (-1, 2)
m=
y2 - y1
x2 - x1
4. What kind of slope does the line represent?
5. Write the equation of the line in slope-intercept that passes through the point (-3, 2) and has a slope of 1?
6. Write the equation of a line in slope intercept form that passes through the points (-1, 4) and (3, 6).
7. SOLVE: 3(x + 2) = 2(2x – 1) – 12
8. A survey showed that 2 out of every 5 voters would vote in an election. Based on this survey, how many people
would vote in a city with 20,000 voters? (set up proportion)
9.
10.
11. Write the equation that contains these sets of x and y values (use the STAT function in calculator to find equation)
12. Find the slope of the line whose equation is 2x + y = 5 (Convert to y = mx + b , first)
13. Change the equation 5x – 2y = 8 to slope intercept form
14. Find the y-intercept of the line whose equation is -2x + 2y = 4
15. What type of lines would make up a system with no solution?
16. What is the value for x in the following system of equations: x – y = 6
2x + y = 0
17. Find the solution to the system (use any method you want) y + 2x = 4
3y – 2x = -12
18. Find the equation of the line (you need to find y-intercept and slope)
19. Solve by elimination.
5x – 9y = -3
4x – 3y = 6
20. Solve and graph the inequality
y > -3x + 1
solution______________
(Don’t forget to shade the TRUE part)
 b  b2  4ac
21. Find the solution(s) of the quadratic using the Quadratic Formula x 
2a
6x2 – 5x – 2 = 0
22. Describe the change in the graph y = -5x when the equation is changed to y = -5x – 4.
23. Which point is in the solution area of this system of inequalities?
y < 2x + 3
y < -x + 1
A.
B.
C.
D.
(1, 2)
(-1, 4)
(2, 1)
(1, -2)
24. Factor the quadratic ( ) ( )
x2 - 12x + 35
25. FOIL the two binomials (Make sure you combine like terms)
( x + 1) (x – 4)
Describe the change in y = x2 for each equation (e.g. up, down, left, right, flipped, got wider or narrawer). Type them in
the calculator using the y =
26. y 
1 2
x
3
27. y  5x
30. y  ( x  1)  8
2
2
2
31. y  ( x  3)  5
28.
y  x 2  9
32. y  ( x  6)  2
2
29. y  x  5
2
33. FOIL (x – 6)(x + 6)
34. What are the solutions of the quadratic function? (the solutions are where the graph crosses the X – AXIS)
35. A cannonball is shot into the air with a velocity of 60 ft/sec. At what time will the cannonball first reach a
height of 36 feet, using the equation below? (Type the equation in the y =. After that go to the table, and find
where y = 36…look to corresponding x value)
h = -16t2 + 60t
A.
B.
C.
D.
.75 sec.
2 sec.
3 sec.
4 sec.
36. What is the slope of a line that is parallel to 6x + 3y = -12 (Slopes of parallel lines are the SAME)
37. What is the slope of a line that is perpendicular to 6x + 3y = -12 (Slopes of perpendicular lines are FLIP the
fraction and change the sign)
38. Netpix charges $1 per movie plus a $20 sign up fee. L.A. Videos charges $3 per movie but no enrollment fees. Write
a system of equations that could be used to find the number of movies a person could rent and be charged the
same from either company.
39. A carpenter recorded the amount of money he earned for different jobs and the amount of time he spent on each
job. The data are shown in the scatterplot below:
Based on the data, which best represents the amount of money the carpenter would earn from a job that took 5 days
to complete?
A $2500
B $500
40. Solve this system by graphing.
C $1250
D $200
3x  2 y  2

2 x  y  6
41.Tell whether the ordered pair (2, -2) is a solution of the system
3x  4 y  14

2 x  5 y  12
42.The system of inequalities below was graphed in the window shown. Are the following points solutions to the system?
A.
B.
C.
D.
(4, 10)
(-3, 12)
(9, 5)
(-4, 5)