Identifying Linear Functions
Using Intercepts
Slope
Slope intercept form
Grab Bag
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?
What is the x intercept
100
What is the slope of a horizontal line?
Zero
100
What is slope intercept form?
y=mx+b
100

Identify both the slope and y-intercept:
y=4x-2

M: 4

(0,-2)

200

What is the standard form of a linear equation?

Ax+By=C

200
Find the x intercept: 2x- 4y=8
x=4
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 and turn it into standard form of linear equation: y=x+3

Yes can be written as -x+y=3

300
Find the x and y intercepts of 3x+4y=24
x=8 and y=6
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 (0,5) is on the line

y=4x+5

300

Describe the process of converting from Standard Form to Slope-Intercept

Move the Ax term

Divide “B”

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 x and y intercepts of 3x- 2y=12
x=4 and y=-6
400
Find the slope of (20,3000) and (60,2000)
What is -25
400
Graph the equation: y= 4x-3
See graph
400

Describe the difference in graphing slope intercept form and standard form

Slope Intercept: Graph the y-intercept and use slope for the next point

Standard: Find the x and y intercepts and graph.

500

When a function is linear, it has a constant what?

Rate of Change/Slope

500
Find the x and y intercepts of 2x + 4y=8. Then graph it
x=4 and y=-2
500
Find the slope of the equation: 6x + 5y=30
What is 6/5
500

Write the equation in slope intercept form and graph: 3x+2y=8

y=-3/2+4 See graph

500

Create a linear equation in slope intercept form with the following information:
(2,5) and (4,7)
Y intercept: (0,3)

y=x+3

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