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Chapter 3: Q12. (page 205)

Find the slope of the line that passes through each pair of points.

鈭�4,7,8,鈭�1

Short Answer

Expert verified

The slope of the line that passes through the given pair of points is鈭�23.

Step by step solution

01

Step 1. Write the formula to find the slope of the line that passes through two points.

The slope of the line (m) that passes through the two pointsx1,y1andx2,y2is:

width="87">m=y2鈭�y1x2鈭�x1

02

Step 2. Find the slope of the line that passes through the points −4,7 and 8,−1.

The slope of the line (m) that passes through the pointsx1,y1=鈭�4,7 andx2,y2=8,鈭�1 is:

m=y2鈭�y1x2鈭�x1=鈭�1鈭�78鈭�鈭�4=鈭�88+4=鈭�812=鈭�23

The slope of the line that passes through the given pair of points is鈭�23.

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Most popular questions from this chapter

Find the slope of the line that passes through each pair of points.

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