Wednesday, September 26, 2012

Unit G Summary Question #8 Y-intercept of Rational Function

How do you find the y-intercept of a rational function? Does this need to be done in the original or simplified equation?
  • To find the y-intercept of a rational function, first we must take the simplified factored equation of the function. this includes any factors that may have been canceled out when finding holes. Simply, plug in zero in the x-values of the simplified equation on all the factors. the y-intercept may be a fraction or not, but the answer will give you the y-intercept.

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