Pre cal

MATH 115 Quiz 2 Summer 2018

Solve the problem.

1) The cost of manufacturing a molded part is related to the quantity produced during a production run. When 100 parts are produced, the cost is $300. When 500 parts are produced, the cost is $3100. What is the average cost per part?

Write a slope-intercept equation for a line with the given characteristics.

2) Passes through (4, 7) and (6, 2)

What is the transformation?

3) How can the graph of f(x) = be obtained from the graph of ?

4) How can the graph of f(x) = x3 + 3 be obtained from the graph of ?

Solve.

5) x2 + 6x + 9 = 4

6) x2 + 35 = 5x

Graph. State the vertex, axis of symmetry, and intercepts (x and y).

7) f(x) = x2 + 2x - 4

Solve.

8)

9)

10) ∣5x + 8∣ < 3

Solve and give interval notation for the solution set.

11)

12) 4x2 < 16

Find the zeros of the polynomial function and state the multiplicity of each.

13) f(x) = 5(x + 8)2(x - 8)3

Graph the function. Be accurate with your points on the graph.

14) f(x) =