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Published byBlake Hicks Modified over 5 years ago

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WARM UP EVALUATING EXPRESSIONS Evaluate the expression for the given value of the variable (Lesson 2.5). 1.-3(x) when x = 9 2.4(-6)(m) when m = -2 3.-5(-n)(-n) when n = 2 4.2(-1)(-x) 3 when x = -3 4

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WARM UP EVALUATING EXPRESSIONS Evaluate the expression for the given value of the variable (Lesson 2.5). 1.-3(x) when x = 9 2.4(-6)(m) when m = -2 3.-5(-n)(-n) when n = 2 4.2(-1)(-x) 3 when x = -3 3

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WARM UP EVALUATING EXPRESSIONS Evaluate the expression for the given value of the variable (Lesson 2.5). 1.-3(x) when x = 9 2.4(-6)(m) when m = -2 3.-5(-n)(-n) when n = 2 4.2(-1)(-x) 3 when x = -3 2

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WARM UP EVALUATING EXPRESSIONS Evaluate the expression for the given value of the variable (Lesson 2.5). 1.-3(x) when x = 9 2.4(-6)(m) when m = -2 3.-5(-n)(-n) when n = 2 4.2(-1)(-x) 3 when x = -3 1

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EVALUATING EXPRESSIONS Evaluate the expression for the given value of the variable (Lesson 2.5). 1.-3(x) when x = 9 2.4(-6)(m) when m = -2 3.-5(-n)(-n) when n = 2 4.2(-1)(-x) 3 when x = -3 WARM UP 0

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GOAL Use the quadratic formula to solve a quadratic equation. KEY WORDS Quadratic formula Vertical Motion model 9.6 Solving Quadratic Equations by the Quadratic Formula

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The quadratic formula gives the solutions of ax 2 + bx + c = 0 in terms of the coefficients a, b and c. 9.6 Solving Quadratic Equations by the Quadratic Formula

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THE QUADRATIC FORMULA 9.6 Solving Quadratic Equations by the Quadratic Formula

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Checkpoint Use the Quadratic Formula. Use the quadratic formula to solve the equation. 1.x 2 – 4x + 3 = 0 2.2x 2 + x - 10 = 0 3.-x 2 + 3x + 4 = 0 9.6 Solving Quadratic Equations by the Quadratic Formula

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