Qz4 for MathExpert121

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QUIZ 4/ Week 6

MATH 107- College Algebra

Instructor: Staci Gash

Instructions: This quiz covers through week 6. You may either type your answers and submit as a word doc or use pencil and paper and scan your work and submit. In either case, submit your homework to the assignments folder in the classroom. It is best to show your work so that you can receive partial credit. If the answer is incorrect and there is no work to back up the answer then the answer will receive zero points. By showing you understand the process you will receive some credit even for an incorrect answer.

Simplify.

Simplify.

2)

Simplify.

3) (6 + 5i)2

Solve with any method.

4) 3x2 + x – 2 = 0

Use the quadratic formula to solve.

5) x2 – 2x = 15

Use the quadratic formula to solve.

6) x2 + 1 = x

For the following: find a) vertex, b) axis of symmetry, c) determine max or min value and d) find that value.

7) f(x) = 2x2 + 6x + 8

Solve.

8)

9)