Question

20 POINTS A company uses functions to model the costs to produce and market a product.

The cost, in thousands of dollars, to produce x units of the product is modeled by function j:

j(x) = 17 + 0.05x.


The cost, in thousands of dollars, to market x units of the product is modeled by function k:

k(x) = 4 + 0.03x.


Which function correctly represents the total cost, in thousands of dollars, to produce and market x units of the product?


A.

c(x) = 21 + 0.08x2

B.

c(x) = 13 + 0.02x2

C.

c(x) = 13 + 0.02x

D.

c(x) = 21 + 0.08x

Answer 1

D

Explanation:

We can add the two functions.

`j(x)+k(x)=(17+0.05x)+(4+0.03x)=21+0.08x`