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Pearson Algebra 1 Common Core, 2011

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Pearson Algebra 1 Common Core, 2011 View details

2. Direct Variation

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Exercise 55 Page 306

Substitute the given points into the Slope Formula.

-5/3

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

SubstitutePoints

Substitute ( 1,- 2) & ( - 2,3)

m=3-( - 2)/- 2- 1

▼

Add and subtract terms

a-(- b)=a+b

m=3+2/- 2-1

Add and subtract terms

m=- 5/3

MoveNegNumToFrac

Put minus sign in front of fraction

m=- 5/3

The slope of the line that passes through the given points is - 53.

Subchapter links

Lesson Check p.304

Practice and Problem-Solving Exercises p.304-306

Standardized Test Prep p.306

Mixed Review p.306