Understanding Linear Functions

Find the slope, midpoint, and equation

Find the slope, vertical intercept, and equation

Find the slope, horizontal intercept, and equation

Find the slope, axis of symmetry, and equation

(0, 4000) and (200, 0)

(0, 0) and (200, 4000)

(100, 2000) and (80, 2400)

(0, 200) and (4000, 0)

10

20

-20

-10

(0, 200) and (4000, 0)

(0, 0) and (200, 4000)

(100, 2000) and (80, 2400)

(0, 4000) and (200, 0)

-20

-10

10

20

(4000, 0)

(200, 0)

(0, 4000)

(0, 0)

200

4000

0

-20

y = 20x - 4000

y = -20x - 4000

y = 20x + 4000

y = -20x + 4000

The horizontal intercept

The midpoint of the line

The vertical intercept

The slope of the line

The line slopes upward

The line is vertical

The line slopes downward

The line is horizontal