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4.4 Find Slope and Rate of Change - PowerPoint PPT Presentation


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4.4 Find Slope and Rate of Change. change in y. rise. =. change in x. run. Slope. slope —ratio of the rise to the run of a line. m = variable that stands for slope. Negative Fractions. Why are these fractions equal?. Find Slope. First way to find slope is to look at the graph.

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slope

change in y

rise

=

change in x

run

Slope
  • slope—ratio of the rise to the run of a line

m = variable that stands for slope

Negative Fractions

Why are these fractions equal?

find slope
Find Slope
  • First way to find slope is to look at the graph

**Does not matter which direction you start with to count—get the same answer

ex 1 find the slope

b)

a)

Ex 1: Find the slope

Horizontal line—slope of 0

ex 1 find the slope1

d)

c)

Ex 1: Find the slope

Vertical line—slope of undefined

determine rate of change
Determine rate of change
  • A car travels 50 miles in 2 hours and 175 miles in 5 hours. Determine the cars rate of change.