MASTER 22310 Steel PC Bridge, 23 1/8 x 10 x 3 3/4, Pearl Gray

here's another example where the numerator is linear and the denominator is a quadratic first let's try to simplify I can't simplify the top can I simplify the bottom I would need two numbers that added to give me negative 1 and multiplied to give me negative 12 so that must be 4 & 3 and I need to add to negative so it's negative 4 okay so that's 3x minus 4 over X minus 4 X plus 3 X minus 4 X plus 3 there's nothing I can simplify there okay remind myself what I'm doing in a sentence for the y-intercept let X be 0 so I've got negative 4 over negative 12 that's one third for the x-intercept I have to let Y be 0 that's the value of my function what if Y is 0 then it's actually only the top of the fraction I really care about it's the top of the fraction being 0 that I want 0 is 3x minus 4 X is going to be 4/3 ok discontinuities my graph is discontinuous where the bottom of my fraction is 0