7.2 Day 0

...all about RATIONAL FUNCTIONS​

Rational functions are equations that

can be expressed as one polynomial

divided by another polynomial.

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Here are a few examples

of what they look like -->​

They have a vertical asymptote (blue dotted line shown)

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AND a horizontal asymptote (red dotted line shown).

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The graph of a rational function is called a HYPERBOLA.

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​This is the general form of a rational equation.

Maybe write this down to help with the next couple slides :)​

​The "k" value tells you the horizontal asymptote.

y = k​

​​The "h" value tells you the vertical asymptote.

x = h​

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​Look carefully at this example.

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The vertical asymptote is

x = 2​

(opposite of the -2 you see in the equation!)​

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The horizontal asymptote is y = 4​

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