Chapter 1 Review

Vocabulary

100

What is the coefficient in the following? 

3x+7

3

200

What finds a number's distance from zero? 

Absolute Values

300

What is an equation that shows the relationship between variables?

Formula

400

What is an equation with two or more variables?

Literal Equation

Equations

100

Solve: 

2x+3 1/7=3

x=-1/14

200

Solve: 

3(x-2)+4=10

x=4

300

Solve: 

-2+5x=2x-5+3x

No Solution

400

Solve: 

3(2x+2)=2(3x+3)

Infinitely Many Solutions

Absolute Values

100

What value can an absolute value NEVER equal? 

A negative

200

Solve: 

abs(1/3x-2)+8=5

No Solution

300

Solve: 

abs(6x+4)=8

x=2/3

x=-2

400

Solve: 

Abs(2x+10)=4x

x=5

Extraneous solution: x=-1 2/3

Rewriting Equations

100

Solve the following for R. 

D=V*R

R=D/V

200

 Solve the following for r. 

C=2pir

r=C/(2pi)

300

Solve the following for y. 

3x+xy-4y=9

y=(-3x+9)/(x-4)

400

Solve the following for x. 

1/2(x+z)-7y=13

x=14y+26-z