Pearson Geometry Common Core, 2011
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Pearson Geometry Common Core, 2011 View details
7. Equations of Lines in the Coordinate Plane
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Exercise 1 Page 193

Substitute the given points into the Slope Formula, m= y_2-y_1x_2-x_1.

5

Practice makes perfect
We can calculate the slope by substituting the given points into the Slope Formula. m = y_2-y_1/x_2-x_1 In this equation, ( x_1, y_1) and ( x_2, y_2) represent two points on the line. Note that it does not matter which point we use for ( x_1, y_1) and which point we use for ( x_2, y_2). The result of using the Slope Formula will be the same.
m = y_2-y_1/x_2-x_1
m=15- 5/6- 4
m=10/2
m=5
The slope of the line that passes through the given points is 5.