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Pearson Algebra 2 Common Core, 2011

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Pearson Algebra 2 Common Core, 2011 View details

3. Linear Functions and Slope-Intercept Form

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Exercise 15 Page 78

Substitute the given points into the Slope Formula.

0

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 ( -3,5) & ( 4,5)

m=5- 5/4-( -3)

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Add and subtract terms

a-(- b)=a+b

m=5-5/4+3

Add and subtract terms

m=0/7

Calculate quotient

m=0

The slope of the line that passes through the given points is 0.

Subchapter links

Lesson Check p.78

Practice and Problem-Solving Exercises p.78-80

Standardized Test Prep p.80

Mixed Review p.80