Question

At Computer Central, the cost of renting a computer is $45 plus $35 per day. The total cost can be represented by the equation y = 45 + 35x, where x is the number of days for which the computer has been rented and y is the total cost of renting the computer. What is the y-intercept of this equation?

Answer 1

Simple, since your equation is y=35x+45, it's quite simple to see what is the y-intercept.
It's written in y=mx+b form, the b being the y-intercept.

Thus, your y-intercept, is 45.