Identifying Linear Functions
Using Intercepts
Slope
Slope intercept form
Mixed
100

What is a function whose graph forms a straight line called?

linear function

100

What is the x-coordinate of the point where the graph intersects the x axis called?

 x- intercept

100

What is the slope of a horizontal line?

Zero

100

What is slope intercept form?

y=mx+b

100

y=3x - 10

linear

200

What is the standard form of a linear equation?

Ax+By=C

200

Find the y intercept: y=8

(0,8) or8

200

What is the slope of a vertical line?

Undefined

200

Write the equation in slope intercept form: slope=0, y intercept =-5

y=-5

200

What lines have the same slope?

parallel

300

Tell whether the function is linear : y=x+3

Linear

300

Find the  y intercepts of y+5 = 3x

(0,-5) or -5

300

Find the slope of (4,-2) and(-1,2)

What is -4/5

300

Write the equation in slope intercept form: slope=4 and y-intercept is 0

y=4x

300

How do you know when you have perpendicular slopes?

When the product of the slopes equal -1

400

Tell whether the set of ordered pairs satisfies a linear function. Explain (2,4), (5,3) (8,2), (11,1)

Yes, constant change in 3 for x. Constant change of -1 in y

400

Find the  y intercepts of y=-2x

0

400

Find the slope of (20,3000) and (60,2000)

What is -25

400

Graph the equation: y= 4x-3

See graph

400

I s the equation y=-3xlinear or nonlinear?

nonlinear

500

Tell whether the function is linear and graph the function y = 2x

Yes it is linear.

500

Find the y intercepts of  y= -3  Then graph it

(-0,-3) or -3 

500

Find the slope of the equation:  3/2x -2 = y

3/2

500

Write the equation in slope intercept form and graph: slope=0 y-intercept = 2

y=2

500

When will be the line proportional?

constant rate

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