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# A Year In Review

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### A Year In Review - Page Text Content

BC: so many

FC: A YEAR IN REVIEW | Julie Bundy Precalculus Algebra

1: Matrices | Ch. 9 | -when adding or subtracting matrices the dimensions must be the same -when multiplying matrices the column of the first has to match the rows of the second

2: Quadratic Formula Ch. 3 | -Quadratic Formula is another way for solving for x. -Separate the equation into part A, B, and C and plug it into the formula and solve for x

3: Completing the Square | Steps | -always check for decending order -Part "A" must be one -Move part "C" to the right of the equal sign -Multiply part "B" times 1/2, then square it, then add it back to both sides -Factor the left side of the equal sign and combine like terms on the right side -Take the square root of both sides and remeber to have positvie and negative sign on the right - Solve for x, find 2 answers

4: Distance formula Ch. 1 | The distance formula helps you know the distance from one point to another on a graph

5: { | { | Midpoint formula | The midpoint formula tells you the midpoint between two points

6: Absolute Value Ch. 3 | To do Absolute value write 2 problems but change the sign of the one on the right

7: Vertex formula Ch. 3 | Vertex formula helps you find the vertex of a graph between points

8: Parametric Equations is the curve of a graph | Parametric Equations Ch. 10.7

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