Raymond B. answered 12/18/20
Math, microeconomics or criminal justice
Graph cost or c on the y-axis, the vertical axis. Plot the point (0,20), it's the y intercept.
then plot the the point where x =100, c=0.25(100) +20 = 25+20 =45. that's the point (100,45)
connect those two points with a straight line, (0,20) to (100,45). That's the graph of the equation for 0<x<100
It has y intercept 20 and slope = 1/4