8th grade math

linear functions

100

A relation can be represented by what? 

Ordered pairs or a mapping diagram

200

each input has how many outputs? 

one output

300

what is a function called with more than one output?

a relation

400

if the output starts at 10 what is it increasing by?

10

500

write a function rule for "the output is five less than the input"?

y=x-5

linear equations

100

solve y=-x-4

        y=6-x

(-5,1)

200

solve x+y=27

        y=x+3

(12,15)

300

solve x-y=7

        0.5+y=5

(8,1)

400

2.2x+y=12.5

1.4x-4y=1

(5,1.5)

500

-1.1x-5.5y=-4.4

0.8x-3.2y=11.2

(-6,2)

solving equations

100

b+2=-5

b=-7

200

-3=k+3

k=-6

300

5-b=2

b=3

400

20-z=15

z=5

500

10+2=o

o=12

cube roots

100

3³

27

200

4³

64

300

5³

125

400

6³

216

500

7³

343

squares and roots

100

2²

4

200

5²

25

300

6²

36

400

7²

49

500

8²

64