Answer:
c = 6m
Explanation:
We need to find the slope
m= (y2-y1)/(x2-x1)
= (30-0)/(5-0)
= 30/5
6
The y intercept is 0
The equation is in the form
y= mx+b where m is the slope and b is the y intercept
y= 6x +0
Changing x to m for minutes and y to c for cost
c = 6m