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McGraw Hill Glencoe Algebra 2, 2012 View details

3. Rate of Change and Slope

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Exercise 4 Page 79

Substitute the given points into the Slope Formula.

2

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 Note that it does not matter which point we choose to use for ( x_1, y_1) and ( x_2, y_2), since the result of using the Slope Formula will be the same.

m=y_2-y_1/x_2-x_1

SubstitutePoints

Substitute ( 3,2) & ( 8,12)

m=12- 2/8- 3

SubTerms

Subtract terms

m=10/5

CalcQuot

Calculate quotient

m=2

The slope of the line that passes through the given points is 2.