Linear Functions & Slope

Find Slope

100

y= 2/3x, What is the slope?

2/3

200

y= x/2, What is the slope?

1/2

300

y=4 x=2 What is m?

m=y/x = 2/1

400

y=100 x=5 What is m?

m=y/x=20

500

y=3 x=12 What is m?

m=1/4

Write an Equation y=mx

100

y=6 and x=3. Write the equation.

y = 2x

200

y=42 and x=6. Write the equation.

y=7x

300

y=256 and x=4. Write the equation.

y=64x

400

y=25 and x=500. Write the equation.

y= 1/20x

500

y=1/4 and x=1/8. Write the equation.

y=2x

Question/Definitions

100

Give one of the names of m.

slope, rate of change, constant of proportionality

200

How do you define slope?

Slope is the steepness of the a line.

300

What is the slope of a horizontal line?

zero

400

What is the slope of a vertical line?

Undefined

500

Describe the following slope -2/3

Down 2, Right 3

Finding Slope from a Table

100

x = 3 4 5,  y = 5 7 9 Find the slope of the line from the above table

m = 2

200

x= -1 1 3, y= 1 7 13 Find the slope of the line from the above table

m=3

300

x= 0 -1 -2, y= 1 3 5 Find the slope of the line from the table above

m=-2

400

x= 4 -2 -8, y=1, 2, 3  Find the slope of the line from the table above

m=-1/6

500

x= 1, 3, 6, y=-4, -2, 0  Find the slope of the line from the table above

m=-2/3

Rise/Run

100

y=2x

Rise 2 and run 1

200

y= 1/3x

Rise 1, run 3

300

y = 0

Horizontal line

400

y = -2/5x

Down/Fall 2, run 5

500

y=-4x

Down/Fall 4, run 1