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Pearson Algebra 1 Common Core, 2015

PA

Pearson Algebra 1 Common Core, 2015 View details

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Exercise 1 Page 231

Substitute - 1 for x and 2 for y.

- 7

Practice makes perfect

We are given an expression and asked to evaluate it for some given values. x&=- 1 y&=2 This means that we should substitute - 1 for x and 2 for y in the given expression and then evaluate. Let's start with 1.

3x-2y

x= - 1, y= 2

3( - 1)-2( 2)

a(- b)=- a * b

- 3-2(2)

Multiply

- 3-4

Subtract term

- 7

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Exercises p.231