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) = 28x - 5
B. f(x) = 5x + 28
C. f(x) = 28x + 5
D. f(x) = 5x - 28
Answer: B
Mathematics
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