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Chapter 4: Q. 421 (page 539)

Find the equation of a line with given slope and containing the given point. Write the equation in slope鈥搃ntercept form.

Horizontallinecontaining(-1,-7)

Short Answer

Expert verified

Equation of the line is y=-7.

Step by step solution

01

Step 1. Given information 

We have been given:

Horizontallinecontaining(-1,-7)

We have to write the equation in slope鈥搃ntercept form.

02

Step 2. Use the equation of the point-slope form of the line

The point-slope formula is y-y1=m(x-x1).

role="math" localid="1647333672443" y-(-7)=0(x-(-1)) Slope of a horizontal line is zero.

03

Step 3. Write in slope-intercept form y=mx+b.

y-(-7)=0(x-(-1))y+7=0y=-7

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