Alg Review Test 4a

Name _______________________________ Review Test 4a Date _____________ Graph the function. Determine if there is a minimum or maximum. Label the vertex and axis of symmetry (AoS). (4 pts each) 1. y = x2 – 6x + 7 1. _______________ vertex ____________ AoS _____________

2. f(x) = 2(x – 1) 2 – 4

2. _______________ vertex ____________ AoS _____________

3. f(x) = -2(x – 4)(x – 2)

3. _______________ vertex ____________ AoS _____________

Write the quadratic function in standard form. Show work. (4 pts each) 4. y = -2(x – 9)(x + 7) 4. _______________

5. y = -4(x + 6)(x – 8)

5. _______________

6. f(x) = 3(x – 4) 2 – 8

6. _______________

Solve the equation. Show work. (3 pts each)

7. x2 + 13x + 36 = 0

7. _______________

8. z2 – 9z + 14 = 0

8. _______________

9. 3a2 + 5a – 28 = 0

9. _______________

Show work. (3 pts each) 10. Medical Lake Elementary School wants to double the area of a rectangular playground that is 72 feet by 48 feet by adding the same distance x to the length and width. Write and solve an equation to find the value of x.

10. Eq ____________ Value of x _________