Honors Mathematics Main Objective: Students will explore the key concepts and theories that provide a foundation for further study of Honors Geometry and Honors Algebra II. Our goal is to increase students’ mathematics literacy, problem solving, and critical thinking skills. Students will be tested on Algebra I concepts on 2nd or 3rd day of school. I-VI: Order of operations, simplifying radicals, evaluating algebraic expressions, properties of exponents, solving linear equations, operations with polynomials. VII-XI. Factoring polynomials, linear equations with two variables, graphing linear functions, solving systems of equations, linear inequalities and absolute value inequalities, solving literal equations. I. Order of Operations (PEMDAS) Parenthesis and other grouping symbols. Exponential expressions. Multiplication & Division. Addition & Subtraction. Simplify each numerical expression. 1) 6 + 2 x 8 – 12 + 9 3 2) 15 - [8 - (2 + 5)] 18 - 52 II. Simplifying Radicals An expression under a radical sign is in simplest radical form when: there is no integer under the radical sign with a perfect square factor, there are no fractions under the radical sign, there are no radicals in the denominator Express the following in simplest radical form. 1) 24 2) 147 3) 6 27 4) 3 6 5) Find the distance between (50, 4) and (40, -6) III. Evaluating Algebraic Expressions To evaluate an algebraic expression: Substitute the given value(s) of the variable(s). Use order of operations to find the value of the resulting numerical expression. Evaluate. y 1 1) x + 3z 2 - 2x if x = , y = 4, z = -2 2 2 3) 2) -b + b2 - 4ac if a = 1, b = - 4, c = -21 2a . Evaluate IV. Properties of Exponents PROPERTY Product of Powers a an = am + n x x2 = Power of a Power (am)n = am n (x4)2 = Power of a Product (ab)m = ambm (2x)3 = Negative Power 1 a = n a a0 = 1 x-3 = Zero Power m (a 0) -n (a 0) Quotient of Powers am = am – n an Power of Quotient am a = bm b EXAMPLE 4 40 = (a 0) x3 = x2 3 m (b 0) x = y Simplify each expression. Answers should be written using positive exponents. 7 -3 1) (3x )(-5x ) -5 0 2 2) (-4a b c) -15x 7 y -2 3) 25x -9 y5 4 x9 4) 4 12 x 3 V. Solving Linear Equations Solve for the indicated variable: 1) 2[x + 3(x – 1)] = 18 2) 2x2 = 50 4) 6 + 2x(x – 3) = 2x2 5) 3) 5 + 2(k + 4) = 5(k - 3)+ 10 2 x x -18 = 3 6 6) x - 2 2x + 1 = 3 4 VI. Operations With Polynomials To add or subtract polynomials, just combine like terms. To multiply polynomials, multiply the numerical coefficients and apply the rules for exponents. Perform the indicated operations and simplify: 1) -2x(5x + 11) 2) (7x - 3)(3x + 7) 4) (5x2 - 4) – 2(3x2 + 8x + 4) 5) (5x – 6)2 3) (n2 + 5n + 3) + (2n2 + 8n + 8) 6) . Find VII. Factoring Polynomials Examples: Factoring out the GCF 1) 6x2 + 21x Trinomial 4) x2 - 2x – 63 Difference of Squares 2) x2 - 64 Perfect Square Trinomial 3) x2 - 10x + 25 Trinomial 5) 2x2 – 13x + 15 Trinomial 6) 6x2 + x – 1 VIII. Linear Equations in Two Variables 1) Find the slope of the line passing through the points (-1, 2) and (3, 5). 2) Graph f(x) = 2/3 x - 4 3) Graph 3x - 2y - 8 = 0 4) Write the equation of the line with a slope of 3 and passing through the point (2, -1). 5) Write an equation of a line that is perpendicular to x - 2y = - 12 and passes through the point (-2,-5). IX. Solving Systems of Equations 1) y = 2x + 4 -3x + y = - 9 (Answers should be written as ordered pairs.) 2) 2x + 3y = 6 -3x + 2y = 17 3) x – 2y = 5 3x – 5y = 8 4) 3x + 7y = -1 6x + 7y = 0 X. Linear Inequalities and Absolute Value Inequalities 1) 2) 4 7 2 x 10 3) 5 2 x 11 4) 2 x 5 11 XI. Literal Equations 1) Solve for h. A= 2) Solve for x. 3) Solve for a. 4ab – 2 = 3a Students, Please find extra practice problems on the school’s website under summer assignments. We highly recommend you review, practice, and UNDERSTAND ALL topics outlined above. Students will be tested on Algebra I concepts on 2nd or 3rd day of school. You are EXPECTED to know these Algebra 1 concepts prior to the test!
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