SlopeRise over run, and the four kinds of slope a line can have.8th GradeSlope measures steepness: the change in ydivided by the change in x between any twopoints on the line.m = (y₂ − y₁) / (x₂ − x₁)(1,2) and (4,8)m = 2(8−2)/(4−1) = 6/3.Positive slopeuphill left to righty increases as x increases.Zero slopehorizontal liney never changes: y = 3.Undefined slopevertical linex never changes; dividing by zero.THE COMMON MISTAKE✗ m = (x₂−x₁)/(y₂−y₁)✓ m = (y₂−y₁)/(x₂−x₁)Rise over run. y is the rise, and it goes on top.Slope is a rate of change. In a real context it always has units:miles per hour, pounds per kilo.Slopewww.littleactivity.com

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Math · 8th Grade

Slope

Rise over run, and the four kinds of slope a line can have.

How to use it

Subtract in the same order top and bottom. Swapping one flips the sign.

Free · print-ready PDF · US Letter and A4

Grade
8th Grade
Ages
13–14
Subject
Math
Pages
1

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