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Glencoe Math: Course 3, Volume 2 View details

Chapter Review

Exercise 8 Page 443

Use the Distance Formula.

About 4.2

Practice makes perfect

To find the distance between points R and S, we can use the Distance Formula. d=sqrt((x_2-x_1)^2+(y_2-y_1)^2) Let's substitute the given coordinates, R(4,3) and S(1,6), into this formula and simplify.

d = sqrt((x_2-x_1)^2 + (y_2-y_1)^2)

SubstitutePoints

Substitute ( 4,3) & ( 1,6)

d=sqrt(( 1- 4)^2+( 6- 3)^2)

SubTerms

Subtract terms

d=sqrt((- 3)^2 + 3^2)

NegBaseToPosBase

(- a)^2=a^2

d=sqrt(3^2 + 3^2)

CalcPow

Calculate power