Unit G summary Question #8 Y intercept

8. How do you find the y- intercept of a rational function? Does this need to be done in the original or simplfied equation?

The y- intercept of a rational function is found by plugging in a zero to the equations. You have to plug in the zero to two equations, the equations are the numerator and the denominator. After you plug in the zeroes to your equation you get your numerator and denominator answer in fraction form. If you can divide the fraction evenly then go ahead and if not, leave it as a fraction. For example if you get 3/3 after you plugged in your zeroes it would divide evenly leaving leaving you with the answer of one. For the fraction if you get your answer as 2/9 your y- intercept will just stay as 2/9. The equation can either be the  original form or simplified, but preferably I think the original form is easier to solve.