What is the domain and range of $h(x) = (x^2 - 3x - 4) / (x - 4)$ ?

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Answer 1 · 2016-02-19T12:13:49

Domain and range are all real values of x and y.

We can write:
$h(x)=((x-4)(x+1))/(x-4)=x+1$

$y = x+1$ is a straight line so will go through every value of x and have a value for every y.

What is the domain and range of h(x) = (x^2 - 3x - 4) / (x - 4)h(x) = (x^2 - 3x - 4) / (x - 4)?