In the problem below, state whether the described change gives a parallel line or a steeper line and write the new equation. The total monthly cost, in dollars, of a loan is C = 0.01x + 3, where x is the number of dollars borrowed and 3 is the current service fee. The service fee rises by 9 dollars.
A) steeper; C = 9.01x + 3
B) parallel; C = 0.01x + 9
C) steeper; C = 0.01x + 12
D) parallel; C = 9.01x + 3
E) parallel; C = 0.01x + 12

Question

Quizplus · Accepted Answer

The change in the service fee affects only the y-intercept, not the slope. Therefore, the line remains parallel, and the new equation is C = 0.01x + 12.

In the Problem Below, State Whether the Described Change Gives