Midterm Review Algebra Part 2

Order of Operations

100

25 + 9 x 8 - 2

95

200

5 + ( 0.2 - 1.3) x 5

-0.5

300

20 + 25/5 x 2 - 8

22

400

4x + 3y - 5

x = -1

y = 2

-3

500

abc

a = 1/2

b = 0.3

c = 0.4

0.06

Solve Equations

100

x + 3 = -5

x = -8

200

3x + 1 = -8

x = -3

300

2( x - 9) = 2 

x = 10

400

4x + 6 = 6x - 2

x = 4

500

2( x + 1) = 4 ( 2x - 4)

x = 3

Inequalities

100

x - 5 > 6

x > 11

open circle, arrow pointing right

200

-2x < 6

x > -3

open circle, arrow pointing right

300

2x - 7 < 9

x < 8

open circle, arrow pointing left

400

-2 < x +3 < 4

-5 < x < 1

open circles, 

arrows pointing towards each other

500

l x + 5 l > 3

x > -2

x < -8

open circles, arrows pointing opposite directions

Polynomials

100

Classify the Polynomial:

6x + 5y -2

trinomial

200

Classify the Polynomial:

5

monomial

300

Classify the Polynomial:

-4/x

not a polynomial

400

Add:

(2x² + 3x - 2) + ( -4x² - 5x + 8)

-2x² - 2x + 6

500

Subtract:

( 5x - 6 ) - ( -6x - 7)

11x + 1

Mix

100

Translate:

six plus a number is 11

 6 + x = 11

200

four less than nine times y

9y - 4

300

Compare:

0.25 _____ 1/4

=

400

Compare:

2/9 _____ 1/7

>

500

How would you graph the following on a coordinate plane?

y > 3x

make an x/y table

choose values for x (1,2,3)

solve for y (3 x 1 ; 3 x 2 ; 3 x 3)

possible points - (1, 3), (2, 6), (3, 9)

graph those points to make the dashed boundary line

shade above