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Pearson Algebra 1 Common Core, 2011

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Pearson Algebra 1 Common Core, 2011 View details

1. Quadratic Graphs and Their Properties

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Exercise 63 Page 552

Substitute - 12 for a, and - 48 for b.

-2

Practice makes perfect

We are given an expression and asked to evaluate it for some given values. a=- 12and b=- 48 This means that we should substitute - 12 for a and - 48 for b in the given expression and then evaluate. Let's start.

-b/2a

a= - 12

-b/2* (- 12)

b= - 48

-(- 48)/2* (- 12)

a(- b)=- a * b

-(-48)/- 24

- (- a)=a

48/- 24

MoveNegDenomToFrac

Put minus sign in front of fraction

- 48/24

a/b=.a /24./.b /24.

- 2

Subchapter links

Lesson Check p.549

Practice and Problem-Solving Exercises p.550-552

Standardized Test Prep p.552

Mixed Review p.552