Question

linear functions in context practice
complete this assessment to review what youve learned. it will not count toward your grade.
a cell phone company charges a flat fee plus an additional charge per minute. if the graph
contains the points (0, 15) and (50, 90), what is the fee the company charges per minute? give
your answer in exact change. (1 point)
the charge per minute is $

Explanation:

Step1: Recall the slope formula

The slope formula is \(m=\frac{y_2 - y_1}{x_2 - x_1}\). Here, \((x_1,y_1)=(0,15)\) and \((x_2,y_2)=(50,90)\).

Step2: Substitute the values into the formula

\(m=\frac{90 - 15}{50 - 0}=\frac{75}{50}\).

Step3: Simplify the fraction

\(\frac{75}{50}=\frac{3}{2}=1.5\).

Answer:

\(1.5\)