Day 104 – February 9

Algebra: Chapter 6 Review

Make sure that your notes are up-to-date.  Can you do the BOX METHOD? Here is a link to my podcast on iTunes about the BOX and CROSS METHODS.

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Algebra 1a: Chapter 7 Review for Algebra Benchmark (#9)

Algebra Skills Practice 19/20 and the Benchmark #2 Practice and Review were started in class. The end of the Chapter Review is a good overview and practice of the entire chapter.

Remember, to solve problems using the slope-intercept formula, `y = mx + b`, you need to have (or solve first for) the slope, then using one of the ordered pairs given `(x, y)` solve for the y-intercept, b.

Given the slope `m`, and the y-intercept `b`, we can develop the equation by plugging in the values for the slope and the y-intercept.

An equation perpendicular to the given one will have to have its slope be the negative reciprocal for the product to be -1. In other words, `m_1 * m_2 = -1`

A new equation that has to be parallel to the given one, must have its slope be exactly the same, `m_1 = m_2`!

 

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