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 $
The flat fee can be determined by finding the y-intercept of the graph. From the given points, we can see that when x = 0, y = 15. Therefore, the y-intercept is 15.
The additional charge per minute can be determined by finding the slope of the graph. The slope is calculated as:
slope = (change in y) / (change in x) = (90 - 15) / (50 - 0) = 75 / 50 = 3/2
Therefore, the company charges an additional $3/2 per minute.
that was wrong
Apologies for the incorrect response. Let's revisit the problem and find the correct fee the company charges per minute.
We are given two points on the graph: (0, 15) and (50, 90).
To find the fee the company charges per minute, we need to determine the slope of the graph, which represents the additional charge per minute.
The slope is calculated as:
slope = (change in y) / (change in x) = (90 - 15) / (50 - 0) = 75 / 50 = 1.5
Therefore, the company charges an additional $1.5 per minute.