Mrs. T Algebra 2 Unit 1 Test Review

Identities & Properites

100

What Identity or Property?
4 (1) = 4

Multiplication Identity

200

What Identity or Property?

2 (½) = 1

Inverse Property of Multiplication

300

What Identity or Property?

9(10 + 8) = 9 • 10 + 9 • 8

Distributive Property

400

What Identity or Property?

8 + (-8) = 0

Inverse Property of Addition

500

What Identity or Property?

15xy = 15yx

 Commutative Property of Multiplication

Mixed

100

|2x-4|=2

x=3, x=1

200

|-6+3|=27

x=-4, x=5

300

|5-2x|-11=0

x=-3, x=8

400

Solve for y

3x + 15y = 2

y = -1/5x + 1/15

500

Solve for r

C = 2 pi r

r = C/(2 pi)

Inequalities

100

x+7>4

x>-3

200

x-18>-15

x>13

300

3-(4m+1)>5m-25

3>m

400

3(x-4)< x-6

x<3

500

2+5(2w-10)/-2<7

w>-6

Equalities

100

x+ 2 = 4

2

200

x+7 = 3

-4

300

3x + 12 = 0

-4

400

2 - (3x +4) = 12

-14/3

500

-10 -(5x + 15) = 20

-9

Absolute Value Inequalities

100

|x-4|<7

x>-3 and x<11

200

|2k+1|> 9

k>4 or k<to -5

300

When I multiply or divide by a negative what happens to the sign

it flips

400

When Im writing the second equation what happen to the signs and what happens to the number on the other side of the equal sign?

sign flips and you change the number to positive or negative depending what it is first.

500

9-2|4x+1|>3

x>4 and x<-1

Evaluate the Expression

100

3x + 5y + x

4x + 5y

200

12 - 5x + 2y + 3x  

12 -2x + 2y

300

13x² + 4x + 10y + 5x² + 2x

18x² + 6x + 10y

400

4y² + 13x² + 4x + 10y + 13y² + x + 10

17y² + 13x² + 5x + 10y+ 10

500

5y² + 10x² + 7x + 5y + 10y² + x + 2y² + 3x² + x + 1y - 10

15y² + 13x² + 8x + 6y - 10