Unit 1 Math Review

Evaluate Expressions

100

z² - 2z - 7 

z=5

8

200

5y-z 

y=5

z=7

18

300

8z² - 10z - 6 

z=3

36

400

2w² + 2w - 5 

w=3 

19

500

6x² - 3x - 9 

x=2

9

Properties

100

x² + x - 4 = 0 

Can also look like: 

x + x² - 4 = 0  

Because of what property?

Commutative property of addition. 

200

5 (x + 2)= -5 

Can also look like this: 

5x + 10 = -5 

Because of what property? 

Distributive Property 

300

1+( 3 + x ) = 2 

Can also look like this: 

( 1 + 3 ) + x = 2 

Because of what property? 

Associative property of addition 

400

- x + x² + 1 = 0 

Can also look like this: 

x² - x +1 = 0 

Because of what property? 

Commutative property of addition 

500

If Y = X then X = Y

Symmetric Property

Literal Equations and solve for X

100

x= y + 1/2 xw 

solve for w 

See problem 12 in review packet

200

6x + 9 = 4x - 3 

x= -6 

300

rc² + g = 3 

See problem 20 in review packet. 

400

5x - 5 = 10x + 40 

x= -9 

500

9t = -4dt + n 

Problem 16 

Sequences

100

Find the 53rd term: 

-12, -1, 10, ..... 

560

200

Find the 94th term: 

25, 31, 37, .... 

583

300

Find the 72nd term: 

11, 7, 3, ... 

-273 

400

Find the 51st term: 

-17, -25, -33, ...

-417

500

Find the 75th term: 

-17, -13, -9, ...

279 

Inequalities

100

-42 + 7x > 7 

x > 7 

200

-7x - 67 > -123 

x < 8 

300

24 - 4x < 52 

x > -7 

400

-6x + 33 < 69

x > -6

500

3x - 61 > -58 

x > 1