### Concept (1)

Simplifying rational expressions combines everything learned about factoring common factors and polynomials. When **simplifying rational functions**, factor the numerator and denominator into terms multiplying each other and look for equivalents of one (something divided by itself). Include parenthesis around any expression with a "+" or "-" and if all terms cancel in the numerator, there is still a one there.

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Sample Problems
(11)

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###### Problem 4

Graphing a parabola from vertex form using a variety of translations.

###### Problem 5

Making a table of values around the vertex of a parabola to graph from standard form.

###### Problem 6

Making a table of values around the vertex of a parabola to graph from vertex form.

###### Problem 7

Using 5 key points to graph a quadratic function from vertex form.

###### Problem 8

Using 5 key points to graph a quadratic function from standard form.

###### Problem 9

Using 5 key points to graph a quadratic function when the "b" value is zero.

###### Problem 10

Using 5 key points to graph a quadratic function from vertex form with the quadratic formula.

###### Problem 11

Using 5 key points to graph a quadratic function when the vertex is the x-intercept.