Constant Rate of Change

Slope and Rate of Change

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(slope = rate of change)

Four Types of Slope

• Positive: up and to the right OR down and to the left

• Negative: up and to the left OR down and do the right

• Zero: no vertical change, horizontal line 

• Undefined: no horizontal change, vertical line

Multiple Choice

What is the slope of this line?

• Zero

• -2

• undefined

• 8

Multiple Choice

Identify the type of slope.

• Positive

• Negative

• Zero

• Undefined

Multiple Choice

Identify the type of slope.

• Postive

• Negative

• Zero

• Undefined

Slope on a Graph

Multiple Choice

The fraction 1/5 as a constant rate of change will...

• Rise 4, & Run 1

• Rise 5, & Run 5

• Rise 1 , & Run 5

• Rise 5 & Run 1

Multiple Choice

What is the rate of change for the following graph?

• 80

• 20

• 40

• 160

Slope from a Table

Multiple Choice

What is the slope shown on the table?

• m = -4

• m = $$\frac{2}{3}$$

• m = $$\frac{3}{2}$$

• m = $$-\frac{2}{3}$$

Slope from Two Ordered Pairs

Multiple Choice

Analyze the point (3, 27). What does the point represent?

• The point (3,27) represents 27 shirts for $3.

• The point (3,27) represents $27 for 3 shirts.

Multiple Choice

Find the slope of the line that contains (3, -4) and (-1, 6)

• $$m\ =\ 1$$

• $$m=\frac{5}{2}$$

• $$m=-\frac{5}{2}$$

• $$m=-1$$

Multiple Choice

Find the rate of change between the points (-2 , 10) & (4 , 14)

• 2/3

• -2/3

• 3/2

• 2/1

Multiple Choice

Which of the following are ways to find the rate of change?

• change in y over change in x

• rise over run

• subtract y coordinates over subtract x coordinates

• all of the above