1.
Warm - Up
Identify the x – coordinate and y – coordinate of
each ordered pair.
(-3,4) (0,-7)
(5,0) (-9,-2)
2.
Section 4.4 The Slope of a Line
Definitions:
Slope – of a non-vertical line is the number of
units the line rises or falls for each unit of
horizontal change from left to right.
Rate of Change – slope is an important way of
visualizing a rate of change
2 1
2 1
rise changeiny y y
Slope
run changeinx x x
−
= = =
−
Be the first to comment