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?

Respuesta :

the y-intercept is the value of y when x = 0

since x represents the number of seconds, the y-intercept = 500 + 50(0) = 500, which can also be written as (0,500)

x = 0 represents an ad that is 0 seconds long, or in other words, the y-intercept is the campaign fee