Chapter 4, Problem 18CR

To determine

To frame: Function rule for the given situation

Answer to Problem 18CR

  $C=45h+200$

Explanation of Solution

Given information: Initial cost is 200 and 45 for each hour the designer spends drawing plans.

Formula used:

  $\begin{array}{l}y=mx+b\\ b->initial\_value\\ m->rate\_of\_change\end{array}$

Calculation:

Initial cost for consultation is 200. The cost for designing per hour is 45 dollars.

Let ‘C’ represents the total cost and ‘h’ be the number of hours designed

Cost per hour is 45 and that is the value of m .

  $\begin{array}{l}y=mx+b\\ m=45,b=200\\ C=45h+200\end{array}$