Final Review

Integers and Variables

100

(-5-2)X(-3)

What is 21

200

(2x)(4x)

What is 8x^2

300

10x^2+3x-2+9x^2-1-x

What is 19x^2+2x-3

400

3(2a+4)+a

What is 7a+12

500

Area and Perimeter Rectangle sides: 4x and 3

What is Area: 12x; Perimeter: 8x+6

Equations

100

x+5=11

What is x=6

200

x/7=3

What is x=21

300

10x-3=2x+21

What is x=3

400

6x+16-3=-6x-9+x

What is x=-2

500

Write and solve an equation: Itunes charges $.99 for most songs and $1.99 for more popular songs. If you spent exactly $12.91, how many of each type of songs (regular and popular, use R and P as variables) did you buy?

What is 12.91=.99R+1.99P; R=5; P=4

Polynomials

100

4x+16x^2-3+2x

What is 16x^2+6x-3

200

(x+2)(x-5)

What is x^2-3x-10

300

4x^2+10x

What is (2x)(x+5)

400

x^2+8x+16

What is (x+4)(x+4)

500

(x-2)(2x+5)=0 solve for x.

What is x=2, x=-2.5

Rational Numbers and Expressions

100

absval(x)-2 > 8

What is x>10 or x<-10

200

(8x^2/2y) x (3y/x^7)

What is 12/x^5

300

(9x^2/5y) divided by (3x/2x^7)

What is 6x^8/5y

400

(10/r)-(7/n)

What is (10n-7r)/rn

500

(x+3/x) + (2x/x+9)

What is 3(x^2+4x+9)/x(x+9)

Graphing and Systems of Equations

100

A(0,4) B(-2,1) Plot points.

What is graph

200

y=2x+3. slope and intercept. graph.

What is slope= 2, intercept =3

300

-3x+5y=12 3x+2y=9

What is x=1, y=3

400

x+2y=9 3x-8y=-1

What is x=5, y=2

500

y<(or equal to) x-3

What is graph.