Question

In order to play at the Mt. Guinea Town Miniature Golf Club, a player has to pay the membership fee and pay for each round played. The total cost is represented by the function

T = 38.79r + 17.18, where T = the total cost (in dollars) and r = the number of rounds played.


Which of the following statements must be true?

A The slope is the cost per round $38.79, and the y-intercept is the membership fee of $17.18.
B The total cost is $55.97.
C The slope is the cost per round $17.18, and the y-intercept is the membership fee of $38.79.
D The slope is the membership fee of $17.18, and the y-intercept is the number of rounds played.
E I don't know

Answer 1

The correct answer is A) The slope is the cost per round $38.79, and the y-intercept is the membership fee of $17.18.

When you are determining what the slope is, it is always the number being multiplied by the variable. Also, since r is the number of rounds played and it is being multiplied by 38.79, we know it to be the per round cost.

We also know that 17.18 is the membership fee since it's a regular cost and it is fixed (or not being multiplied by anything).