2. Consider the equations: f(x) = -8x – 2 and g(x) = 5×2. Select the solution for (f + g)(x). a. -8x – 2 + 5×2 b. -40×3 – 10×2 c. -40×2 – 2 d. -8x – 2 – 40×2

3. Consider the equations: f(x) = -8x – 2 and g(x) = 5×2. Select the solution for (fg)(x). a. -8x – 2 + 5×2 b. -40×3 – 10×2 c. -40×2 – 2 d. -8x – 2 – 40×2

4. Select the x-coordinate of the vertex of the parabola defined by the function f(x) = -9×2 + 7x + 1

a.

−9 7

b. 1 c.

7 18 d. 7

5. Determine the equation of g(x) that results from translating the function f(x) = x2 + 9 upward 10 units. a. g(x) = (x + 19)2 b. g(x) = (x + 10)2 + 9 c. g(x) = x2 – 1 d. g(x) = x2 + 19

6. Determine the equation of g(x) that results from translating the function f(x) = (x+2)2 to the right 4 units. a. g(x) = (x – 2)2 b. g(x) = (x + 6)2 c. g(x) = (x+2)2 – 4 d. g(x) = (x+2)2 + 4

7. Select the approximate values of x that are solutions to f(x) = 0, where f(x) = -2×2 + 4x + 3. a. {-0.67, 1.33} b. {-2, 4} c. {-2.00, -1.50} d. {-0.58, 2.58}

8. Select the approximate values of x that are solutions to f(x) = 0, where f(x) = -2×2 + 3x + 7. a. {2.77, -1.27} b. {-2, -3} c. {-1.50, -3.50} d. {-0.29, 0.43}

9. Select the approximate values of x that are solutions to f(x) = 0, where f(x) = -2×2 + 2x + 6. a. {-1.30, 2.30} b. {-2, 2} c. {-1.30, -2.30} d. {-0.33, 0.33}

Week 4 Practice Quiz MTH/209

2

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10. Select the values of x that are solution to the inequality 0 > x2 + 5x – 2 a.

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