Compute Monthly Cost

[nycmath]

Precalculus
Michael Sullivan
Edition 10
Chapter 2, Section 2.4

See attachment.

A. We want C(2)

C(2) pertains to C(x) = 34.99.

So, C(2) = 34 dollars and 99 cents.

B. We want C(5).

So, C(5) pertains to C(x) = 15x -20.01.

C(5) = 15(5) -10.01

C(5) = 64 dollars and 99 cents.

C. We want C(13).

C(13) pertains to C(x) = 15x -10.01.

So, C(13) = 15(13) - 10.01.

C(13) = 184 dollars and 99 cents.