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When working on #14, pick the point (x, y) on the parabola. This point is equidistant to both the directrix and focus.

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When working on question #13, you must use completing the square to put into vertex form.
Remember to check your answer by putting the original equation into your calculator to see if you have the vertex correct.

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When working on question #12, you must do completing the square twice to manipulate the equation so it resembles the equation of a circle.

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When solving an inequality, make sure that your answer is either an "and" or "or" statement.

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There is a difference between factoring and solving. We factor expressions and the answer is left in factored form (usually a set of parentheses). We solve equations and our answer is actually solving for x.

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quadratic function
turning point
axis of symmetry
parabola
y-intercept
x-intercept/roots/solutions/zeros
factor
solve
zero product law
vertex form of a parabola
vertex
maximum
minimum
locus
focus
directrix

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·         Lesson #1 – Quadratic Function Review

·         Lesson #2 – Factoring

·         Lesson #3 – Factoring Trinomials

·         Lesson #4 – Complete Factoring

·         Lesson #5 – Factoring by Grouping

·         Lesson #6 – The Zero Product Law

·         Lesson #7 – Quadratic Inequalities in One Variable

·         Lesson #8 – Completing the Square and Shifting Parabolas

·         Lesson #9 – Modeling with Quadratic Functions

·         Lesson #10 – Equations of Circles

·         Lesson #11 – The Locus Definition of a Parabola