Solve the problem.
-A cable TV company charges $28 for the basic service plus $5 for each movie channel. Find a linear function f(x) = mx + b whose input is the number of movie channels selected and whose output is
The total cost. Find the slope-intercept form of the equation.
A) f(x) = 5x - 28
B) f(x) = 28x + 5
C) f(x) = 28x - 5
D) f(x) = 5x + 28

Question

Quizplus · Accepted Answer

The linear function can be written as:
f(x) = 5x + 28
where x is the number of movie channels selected. 
The slope of the function is 5, which represents the additional cost for each additional movie channel. 
The intercept of the function is 28, which represents the basic cost of the service. 
Therefore, option D is the correct choice.

Solve the Problem. -A Cable TV Company Charges $28 for the Basic Service