Variables + Function Tables

Terms

100

Which is the constant?

7x + 12

12

200

What is the numerical coefficient?

91t + 4 + (2 x 15)

91

300

Which is the variable?

8y + 17- (19y/2)

y

400

What is an expression?

An expression is a number, a variable, or a combination of numbers and variables and operation symbols.

500

What is an equation?

An equation is made up of two expressions connected by an equal sign.

Variables

100

13 = 11 – 4x

x= 6

200

15 – 2b = –9

b=3

300

-7 + 4r = -15

r= -2

400

4 + 3y = 31

y= 9

500

8x + 38 = 102

x=8

Variable

100

−3x + 5 = 2

x = 1

200

2t − 5 = −15

t = -5

300

3v-5 = 40

v = 15

400

8 = 3a – 4

a= 4

500

13 + 7x = 27

x= 2

Function Table1

100

input (m)     output (n)

10              80

6               48

3               24

m x 6 = n

200

input (m)     output (n)

36              6

90              15

120            20

m / 6 = n

300

input (m)     output (n)

13               33

70               90

27              57

m + 20 = n

400

input (m)     output (n)

74                24

120              70

1060            1010

m-50=n

500

input (m)     output (n)

19               76

40              160

23              92

m x 4 = n

Function Table2

100

input (m)     output (n)

4              32

7              62

10            92

(m x 10) - 8 = n

200

input (m)     output (n)

22              8

34              12

43              15

(m + 2) / 3 = n

300

input (m)     output (n)

19              24

20              26

21              28

(m - 7) x 2 = n

400

input (m)     output (n)

45              28

81              32

99             34

(m/9) + 23 = n

500

input (m)     output (n)

4                8

7                9

10              10

(m+20)/3 = n