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Pearson Algebra 2 Common Core, 2011

PA

Pearson Algebra 2 Common Core, 2011 View details

Cumulative Standards Review

Finish the assignment

Exercise 3 Page 759

Apply inverse operations to isolate y.

B

Practice makes perfect

Rewriting any linear equation in the slope-intercept form requires us to isolate the y-variable. To do this, we will use the Properties of Equality to apply inverse operations on the equation. Remember, only like terms can be combined.

5x-7y=25

LHS-5x=RHS-5x

- 7y=25-5x

.LHS /(- 7).=.RHS /(- 7).

y=25/- 7-5x/- 7

MoveNegDenomToFrac

Put minus sign in front of fraction

y=- 25/7-(- 5x/7)

a-(- b)=a+b

y=- 25/7+5x/7

CommutativePropAdd

Commutative Property of Addition

y=5x/7-25/7

MovePartNumRight

a* b/c=a/c* b

y=5/7x-25/7

This result corresponds to answer B.

Subchapter links

Exercises p.758-760

Vocabulary Review