Review - Linear Equations

Finding Slope of a Line

100

Identify the slope of the following equation. y = mx + b

the variable m

200

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

slope is 2

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

400

Identify the slope of the following equation 

3x + 2y = -6

-3/2

500

Identify the slope of the following equation 

5y - x + 2 = 4(2x + 5)

9/5

Graphing Linear Equations

100

What form do we use to graph a linear equation?

the slope-intercept form y = mx + b

200

When graphing linear equations, where do we begin?

We begin at the y-intercept.

300

Graph the following equation.

y = 1/3x + 4

Graph should start with the point at (0, 4) Movement should be 1 up and 3 to the right continuing to another point.

400

Graph the following equation.

y = -2

Graph should begin with a point on the y-axis at -2. A horizontal line should be drawn through -2 extending on both sides of the y-axis.

500

Graph the following equation

4x + 9y = -9

Graph should start with the point at (0, -1) Movement should be 4 down and 9 to the right continuing to another point.

Slope-Intercept Form

100

What is slope intercept form?

y = mx + b

200

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

0

300

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

y = -x - 12

400

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

y = -1/2x - 3

500

Rewrite the following equation in slope-intercept form. 7/2x - 7y = -21

y = 1/2x - 3

RANDOM ?'s

100

Solve:

(x-2)/4 = 5

x = 22

200

Solve:

3x - 2 = -14

x = -4

300

What is the slope of this equation?

 x = 5

Undefined Slope

400

Graph the following equation

8x + 4y = 16

Should be rewritten as y = -2x + 4 and then graphed.

500

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

No it is not a solution.