Identifying Linear Functions
Miscellaneous
Slope
Slope intercept form
Point Slope form &Slopes of lines
100

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

linear function

100

What is the name of the point where the graph intersects the x axis ?

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
Write the linear equation in point slope form: Slope=-7 ; (4,2)
y-2 = -7(x -4)
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

If two lines are parallel the slopes are the _________.

Same

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 (2,5) is on the line
y=4x-3
300

A line contains the points (3,5) and (6, 7).  What is the equation in slope-intercept form?

y = (2/3)x + 3

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

What is the slope of the line perpendicular to 3x - 2y = 12

-2/3

400
Find the slope of (20,3000) and (60,2000)
What is -25
400
Graph the equation: y= 4x-3
See graph
400
Write this equation in point slope form & in slope intercept form: slope=-4, (-1,-2)
Point slope form: y+2= -4(x+1) Slope intercept: y=-4x -6
500

Tell whether the equation is a linear function and graph the function.       x = 4

It is not a linear function.  Ther graph is a vertical line through x = 4.

500

What is the slope of the line parallel to 10x + 25y =50

5/2

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=-3/2x+4 See graph

500
Write the equation in point slope form and in slope intercept form: (1,-4) and (3,2)
Point slope: y-2=3 (x-3) slope intercept: y=3x -7
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