9th Grade Algebra

Solving Equations

100

Solve for m: 

-2m - 6 = 8m + 12

m=-1.8

200

Solve for x: 

5x - 3 = 2x - 12

x = -3

300

Solve for m: 4-m=c

m=-c+4

400

Solve for x: 7x+20=55

x=5

500

Solve for m: d=2m-6

d+6/2=m

Solving Inequalities

100

Solve this inequality for x: 2(x+3)>12

x>3

200

Solve this inequality for b: -4b+2b+5>15

b>-5

300

Solve this inequality for y: y/3-4>2

y>18

400

Solve this inequality for y: -2y<-8

y>4

500

Solve: (x-3)/2<-5

x<-7

Systems

100

What is the solution to the system?

y = 2x - 1

y = -4x - 7

(-1,-3)

200

What is the solution to the system?

18x - 3y = 21

y = 6x - 7

Infinitely many solutions

300

Solve the system:

7y = –2x + 5

3x + 10y =6

(-8,3)

400

Solve the system:

 y = 4x + 5

12x – 3y = 9

No solution

500

Solve the system:

5x + 3y = 13

7x + 8y = −16

(8,-9)

Rational/Irrational Numbers

100

Is this number rational or irrational? 

3 2/4 - √25/6

rational

200

Estimate:  √38

6.1 or 6.2 

300

Estimate √70

8.3 to 8.4

400

Is this number rational or irrational? 

2.5 + √45

irrational

500

Is this number rational or irrational?  √2

irrational

Arithmetic Sequences

100

Find the common difference: 15, 10, 5, 0, -5, -10

d=-5

200

Find the 8th term of the sequence: 3, 5, 7, 9, 11

17

300

Find the common difference: -3, -18, -33, -48, -63

d=-15

400

Find the common difference: -24, 6, 36, 66

d=30

500

Find the 7th term of the sequence: 23, 15, 7, -1

-25