In particular, our book would not have cleared the fraction in example 4. Remember a point is two numbers that are related in some way. Therefore, our two points are 1,35 and 3,57 Let's enter this information into our chart.

First, we need to move the x-term to the left side of the equation so we add 3x to both sides. In algebraic terms, it's the change in y divided by the change in x. Ok, now let's apply this skill to solve real world problems. Finally, we must get rid of the fraction so, we clear the fraction by multiplying by the common denominator of all of the terms which is 4.

It gives all of the same information as the slope-intercept form that we learned about on Day 5 just written differently.

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Writing Algebra Equations Given Two Points