Tyra subscribes to an online gaming service that charges a monthly fee of
$5.00 and $0.25 per hour for time spent playing premium games. Which of
the following functions gives Tyranost, in dollars, for a month in which
she spends x hours playing premium games?
A) C(x) = 5.25x
B) C(x) = 5x +0.25
C) C(x) = 5 +0.25x
D) C(x) = 5 + 25x

C) C(x) = 5 +0.25x

Step-by-step explanation:

Let

C(x) ---> the total cost monthly

x ---> is the number of hours in a month

we know that

he linear equation in slope intercept form is given by

where

m is the slope or unit rate

b is the y-intercept or initial value

In this problem we have

The slope is equal to

The initial value or y-intercept is equal to

substitute