. A phone company offers a monthly cellular phone plan for $25. The plan includes 250 anytime minutes, and charges $0.20 per minute above 250 min. Write a piecewise-defined function for C(x), the cost for using x minutes in a month.

i think it will be zero as slope has a formula of difference between initial and final distance divided by itz time interval

step-by-step explanation:

for exempl this   system of equations   y = x - 3

                                                                y = 2x - 5

look   the line : y = x -3     ( red)

                            the line : y = 2x -5 ( bleus)