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WARM UP

What do you think the word slope means? Make a list of things that vary in slope.

COUNTING UNITS TO FIND SLOPE

Slope =

AIRPLANES

The graph models the altitude of an airplane from the time the wheels are lowered (time=0s) to when the plane lands. Find the slope of the line.

USING COORDINATES TO FIND SLOPE

Slope = where

Find the slope of a line through A(-2,1) and B(5,7)

EXAMPLE

Find the slope of a line through the points A(0,-1) and B(3,4)

FIND THE SLOPE OF THE LINEUSING THE POINTS SHOWN.

EXAMPLE

Draw a line through the point (1,2) with the slope

EXAMPLE

Draw a line through the point (1,1) with the slope

SLOPE OF LINES

HOMEWORK

Pg 217-218 # 1-15 odd, 25