Question

A company is paying a local television station to run its commercials. The cost for running commercials is a one-time campaign fee and also a per-second fee for the air time of each commercial. The cost can be modeled by the equation y = 500 + 50x, where x is seconds.

What is the y-intercept, and what does it represent?

a.500; it represents the per-second fee of air time
b. 500; it represents the one-time campaign fee
c. 50; it represents the per-second fee of air time
d.50; it represents the one-time campaign fee