Foundation Review

Simplifying Expressions

100

2x + 4 + 5x

7x + 4

4 + 7x

200

2(3x - 5)

6x - 15

300

7x - 4 - 8x

-x - 4

-4 - x

400

7 + 4(x - 2)

-1 + 4x

4x - 1

500

-3(5x - 7) + 4x

-11x + 21

21 - 11x

Functions

100

f(x) = 4x + 2

f(3) = 

14

200

f(x) = x² - 4

f(0) = 

-4

300

f(x) = 3x²+ 5

f(-2) = 

17

400

g(x) = 3x²+5x-6

g(-1) = 

-8

500

f(x) = 3x + 2 and g(x) = x² - 4

f(-2) + g(3) 

1

Solving Equations

100

2x = -18

x = -9

200

What is the goal of solving equations?

To get the variable by itself

300

5x - 20 = -40

x = -4

400

2x + 6 + 4x = 42

x = 6

500

5x + 2 - 3x = 4x + 10

x = -4

Inequalities

100

Which inequalities signs do you use if it is an open circle?

 < and >

200

When do you flip the inequality sign

When you multiply or divide by a negative number

300

5x + 10 > 40

x > 6

400

3(2x - 8) < 6

x < 5

500

4x - 6 > 6x - 10

x < 2

2 > x

Other Stuff

100

What are the 3 synonyms for x-values?

Domain

Independent Variable

Input

200

What quadrant would the point (-4, -3) lie in?

III

300

What is Superman's weakness?

kryptonite

magic

400

How many arms does a squid have?

10

500

What values represent the range of a function?

The y-values