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Big Ideas Math Algebra 1, 2015

BI

Big Ideas Math Algebra 1, 2015 View details

Chapter Review

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Exercise 20 Page 166

Choose two ordered pairs from the table and calculate the slope by substituting them into the Slope Formula.

0

Practice makes perfect

Looking at the table, we can identify 4 ordered pairs. (-4, -1), (-3, -1), (1, -1), (9, -1) To calculate the slope of the line we need only two of these. Let's find the slope by substituting (1,-1) and (9, -1) into the Slope Formula.

m = y_2-y_1/x_2-x_1

SubstitutePoints

Substitute ( 1,-1) & ( 9, -1)

m=-1-( -1)/9- 1

a-(- b)=a+b

m=-1+1/9-1

Subtract terms

m=0/8

Calculate quotient

m=0

Subchapter links

Exercises p.164-168