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Big Ideas Math: Modeling Real Life, Grade 8

BI

Big Ideas Math: Modeling Real Life, Grade 8 View details

6. Writing Equations in Slope-Intercept Form

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Exercise 1 Page 177

Apply inverse operations to isolate y and write the linear equation in slope-intercept form.

y=- 4x+1

Practice makes perfect

An equation in slope-intercept form follows a specific format. y= mx+ b To write the given linear equation in slope-intercept form, we will use the Properties of Equality to apply inverse operations on the equation and isolate y. Remember, only like terms can be combined.

4x+y=1

LHS-4x=RHS-4x

4x+y-4x=1-4x

CommutativePropAdd

Commutative Property of Addition

y+4x-4x=- 4x+1

Subtract term

y=- 4x+1

Subchapter links

Try It p.174-175

Self-Assessment for Concepts & Skills p.175

Self-Assessment for Problem Solving p.176

Review & Refresh p.177

Concepts, Skills, & Problem Solving p.177-178