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Pearson Algebra 1 Common Core, 2011

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Pearson Algebra 1 Common Core, 2011 View details

5. Standard Form

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Exercise 31 Page 326

You will need to apply the Properties of Equality, solving until the equation is in standard form.

2x+(-1)y=-5

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Equations in standard form are written in a specific format. Ax+ By= CIn this form, A, B, and C are integers and A and B cannot both be zero. We will use the Properties of Equality to rewrite the given equation in this form.

y=2x+5

LHS-5=RHS-5

y-5=2x

LHS-y=RHS-y

-5=2x-y

Rearrange equation

2x-y=-5

a+(- b)=a-b

2x+(-1)y=-5

Now we can see that our equation follows the standard form. Ax+ B y&= C 2x+ (-1)y&= -5

Subchapter links

Lesson Check p.325

Practice and Problem-Solving Exercises p.326-328

Standardized Test Prep p.328

Mixed Review p.328