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Finding Slope of a Line
Parallel and Perpendicular
Slope-Intercept Form
RANDOM ?'s
Writing Equations
100

Which variable in y=mx+b represents the slope?

What is m

100

Parallel lines have __________

the same slope; equal slopes

100
What is slope intercept form?
y = mx + b
100

Evaluate:

-2 - 5

-7

100

The equation of a horizontal line through (2,5)

What is y = 5

200

Identify the slope of the following equation. y = -2x + 3

slope is -2

200
The slopes of perpendicular lines are __________

negative inverses

200
In the following linear equation, what is the y-intercept? y = -3/4x
0
200

Solve:

3x - 2 = -14

x = -4

200

Write an equation for a vertical line through the point (-3, 3)

x = -3

300
Name three ways to describe slope.
Possible answers: rate of change rise over run y - y x - x slope = m in y = mx + b
300

The slope of a line perpendicular to

y = 4x +5

What is  -1/4

300
Rewrite this equation in slope-intercept form. x + y = -12
y = -x - 12
300

What is the slope of this equation?

 x = 5

Undefined Slope

300

Write an equation with slope m = 2/3   that passes through the point (3, 0).

y = 2/3x - 2

400
Find the slope of the line that includes the following points. (4, -5) (-4, 5)
-10/8 which simplifies to -5/4
400

Write the equation of a line through (2, -5) that is parallel to y= -x

What is y = -x -3

400
Rewrite the following equation in slope-intercept form. 3x + 6y = -18
y = -1/2x - 3
400

Graph the following equation. y = 2x -2

(use 3 or more points)

Graph should have 3 or more points, with slope of 2 and y-intercept at -2. 

 Possible correct points include (-1, -4) (0,-2), (1,0), (2,2), (3,4)

400

Write the equation of a line through the points

 (15, -10)  and (5, 10)

slope = -2 y intercept = 20

y = -2x + 20

500
Find the slope of the line that includes the following points. (-12, -9) (-3, -3)
-6/-9 = 6/9 = 2/3
500

The equation of a line through (2, 15) that is perpendicular to y = 6.

What is x=2

500

Rewrite the following equation in slope-intercept form. 3.5x - 7y = -21

 y = 1/2x - 3

500

Is x = 2 a solution to the equation 2(x - 5) + 3 = 13  ?

No it is not a solution.

500

You have 10 dollars to spend at a carnival.  Games cost $0.75 each.  Write an equation in y=mx+b form to express how much money you have left (y) after playing x games.

 How much money do you have after playing eight games? 

equation:  y=-0.75x +10

y = -0.75(8) + 10   ; y = -6 + 10   ; y = 4

 $4 dollars left after playing 8 games.