Algebra1 Review 3

Function Rules

100

Write the rule

[(-2,8),(-1,4),(0,0),(1,-4),(5,-20)

F(x)=-4x

200

Write the rule

{(-4,2),(-2,1),(0,0),(2,-1),(4,-2)}

f(x)= -1/2x

300

Write the rule

{(-3,-5),(-1,-3),(1/3,-5/3),(2,0),(5,3)

f(x)= x-2

400

Write the rule

{(-8,-5),(-4,-1), (-3,0)(2,5),(4,7)}

f)x)=x+3

500

Write the rule

(-5,-15),(-2,-6),(-1,-3),(3,9),(5,15)

f(x)-x+2

Relations and functions

100

True or false

A relation is any set of ordered pairs

true

200

True or false 

The domain of a relation is the set of the second elements(y coordinate)

False

300

State the domain and range and Draw a mapping diagram

(-3,5),(2,2),(2,4),(4-1)

D=-3,2,4

R= -1,2,4,5

400

State whether the set represents a relation

{(2,4),(5,9),(8,2)}

Yes

500

State whether its a function

(-5,1),(-5,2)(2,8),(5,6)

no

Simple inequalities

100

Determine whether each number is a solution

2m<4

a. -2

b. 2

c. 4

a.yes

b. no

c. no

200

Solve 

2w+73 lesson than equal to -23

-48

300

Solve

12-24n>-6

N>3/4

400

Solve

-2x+8>20

x<-6

500

Solve 

-y/4+5>8

y<12

Multi-step inequalities

100

Solve

5x-8x+6>24

x<-6

200

Solve

4b-12-3b<-142

b<-130

300

Solve

5(c-2)>-5

C>1

400

2m-9<3m+9

m>-18

500

Solve

3(11-a)+7<5a+6(2-a)

a>14

Misc.

100

Who lives in a pineapple under the sea?

Spongebob Squarepants

200

Why was the math book sad?

It had a lot of problems

300

Why can't your nose be 12 inches long?

It would be a foot

400

What do you call cheese that does not belong to you?

Nacho Cheese

500

What has keys but no locks?

Piano