Expressions, Equations, and Slope Review

Order of Operations

100

5 + 7 / 7

6

200

5 - 3 x 6

-13

300

6 + 2² x 3

20

400

7 + (8 - 2) / 3

9

500

3 - (10 / 2 + 1) 

-3

Evaluating Expressions

100

Let x = 1. What is x² + x - 3? 

-1

200

Let a = 4. What is a(a+5)? 

36

300

Let x = -2 and y = 7. What is 2(x + y) + 4? 

14

400

Let a = 6, b = 2, and c = -7. What is 2(a + b - c) 

30

500

Let x = -1 and y = 0. What is xy + x²?

1

Solving Equations

100

2 + x = 9 

x = 7

200

x - 9 = 3 - 3x 

x = 3

300

-2x + 8 = -2x + 2

No Solution

400

8 - 3x - 8 = -2x 

x = 0 

500

2x + 18 = 2(x + 7) + 4

Infinite Solutions

Finding the Slope

100

Slope is represented by what variable? 

m

200

What is the equation for slope? 

(y₂-y₁₎/(x₂-x₁₎

300

What is the slope of the line that passes through the points (1, 2) and (3, 8)? 

3

400

What is the slope of the line that passes through the points (-1, 9) and (-5, 9)? 

0 

500

What is the slope of the line that passes through the points (-2, 4) and (-2, 7)? 

Undefined

Slope-Intercept Form

100

What is the equation for slope-intercept form? 

y = mx + b 

200

Identify the slope and y-intercept of the equation 

y = -6x + 2

m = -6, b = 2

300

What is the equation of the line that passes through the point (1, 4) and has a slope of 2? 

y = 2x + 2

400

Is x = 4 a horizontal or vertical line, and what is the slope? 

Vertical and m = undefined 

500

What is the equation of the line that passes through the point (1, 9) and has a slope of 0?

y = 9