Pre Algebra Unit II

Exponents

100

Which number is the base?

4^6

4

200

Simplify the expression. 

6x^6

6x^6

300

Which part of the expression is the exponent? 

x^y

y

400

Simplify the expression. 

(x^-6)/(x^2)

1/(x^8)

500

Simplify the expression. 

(4^3)^6

68,719,476,736

Square Roots and Cube Roots

100

The number underneath the radical is called the...

radicand 

200

x²=29

sqrt29

300

sqrt9

3

400

3sqrt27

3

500

3sqrt8

2

Scientific Notation

100

Write 0.0976 in scientific notation.

9.76 x 10^-2

200

Rewrite 246.54 in scientific notation.

2.4654x10^-2

300

Write 3.54x10³ in standard form 

3540

400

(4.5x10⁵) + (6.7x10⁵) 

1.12x10⁶

500

(9.2x10³)x(8x10²)

7.36x10⁶

Proportional Relationships

100

What is the word for the change in y over the change in x

slope

200

If a cellphone company has a base fee of $42 and charges $0.75 a text, how much would it cost to send 20 texts? 

$57

300

If Ms. Hutchings makes $11 dollars for every tshirt she sells. How much money will she make after selling 7 shirts? 

$77

400

Find the slope of the graph that passes through (-4,0) and (0,-2) 

-1/2

500

What two things must proportional relationship have? 

Constant slope and pass through the origin

Linear Equations and Inequalities

100

4x+8(x+1)=3(3x-1)+44

x=11

200

What are the possible number of solutions in linear equations? 

infinite

none

one 

300

3x-4>20

x>8

400

(2x)/3=8

12

500

x+y>4

y>-x+4

Systems of Equations

100

Solve: 

y=3x

y=-5x-8

(1,-3) 

200

Find x for the systems: 

y=x-4

2x+y=5

x=3

300

Solve: 

4x+11y=10

14x+8y=-26

(-3,2) 

400

Find y for the systems: 

y=x-4

2x+y=5

y=-1

500

Solve:

-8x+8y=32

6x-14y=8

(-8,-4)