Algebra Support Review

Equations

100

3x - 7 = - 22

x = - 5

200

- 8(x - 2) = - 16

x = 4 

300

- (2x + 6) + 5x = - 9 

x = - 1

400

x + y = 7

3x - y = 1

(2, 5)

500

y = 8x - 1 

y = -2x - 1 

(0, -1)

Slope

100

What is the slope formula? 

y₂ - y₁ / x₂ - x₁

200

Find the slope of the line: 

y = 5 - 3x

m = - 3

300

Find the slope of the line that passes through the points: 

(5, - 4) (- 1, 6)

m = -5/4

400

What is true about the slope of perpendicular lines? 

opposite, reciprocals 

500

Find the slope of the line: 

3x + 5y = 25

m = -3/5

Graphing

100

Plot the point (6, - 3)

Right 6, down 3

200

Graph the line: 

y = -1/2 x - 4

show boards

300

Find the x and y intercepts and graph the line. 

3x - 2y = 12

x - int = 4

y-int = - 6

400

Graph a line parallel to y = 2x - 1 that goes through (0, 4)

show board

500

Graph the system and name solution. 

y = -x + 7

y = 2x + 1

(2, 5)

Basic Skills

100

3/4 - 1/8 

5/8

200

- 12 - 5 

- 17

300

3/5 * 5/9

1/3

400

3 - 4(-5 + 2) * 3

- 33

500

Find the perimeter of a square with sides 3.5 inches. 

14 inches