Writing Equations based on a table
Review:
1.) Write the equation of
the line that goes through
the points:
(2, 14) and (3, 16)
2.)
x
1
2
3
4
y
12
14
16
18
a.) Linear or Exponential?
4.)
x
1
2
3
4
y
13
19
25
31
Name______________________________
7.) Write the equation of
the line that goes through
the points:
(4, 15) and (6, 20)
9.)
x
1
2
3
4
y
2
4
8
16
a.) Linear or Exponential?
a.) Linear or Exponential?
b.) Eqn: _____________
b.) Eqn: _____________
5.)
x
1
2
3
4
y
60
50
40
30
8.)
x
2
4
6
8
y
10
15
20
25
a.) Linear or Exponential?
10.)
x
1
2
3
4
y
3
9
27
81
b.) Eqn: _____________
b.) Eqn: _____________
a.) Linear or Exponential?
a.) Linear or Exponential?
b.) Eqn: _____________
b.) Eqn: _____________
3.)
x
1
2
3
4
y
25
30
35
40
6.)
x
1
2
3
4
y
-18
-22
-26
-30
9.)
x
1
3
5
7
y
-4
-2
0
2
11.)
x
1
2
3
4
y
4
16
64
256
a.) Linear or Exponential?
a.) Linear or Exponential?
a.) Linear or Exponential?
a.) Linear or Exponential?
b.) Eqn: _____________
b.) Eqn: _____________
b.) Eqn: _____________
b.) Eqn: _____________
12) Jessica started with 1
friend, and each year she
gained two more friends
a.) Linear or Exponential?
b.) Eqn: _____________
13) Jennifer started with
1 friend, and each year
her number of friends
doubled.
a.) Linear or Exponential?
b.) Eqn: _____________
16.)
x
0
1
2
3
y
4
8
16
32
20.)
x
1
2
3
4
y
200
100
50
25
a.) Growth or Decay?
a.) Linear/Growth/Decay?
b.) Eqn: _____________
b.) Eqn: _____________
b.) Eqn: _____________
21.)
x
1
2
3
4
25.)
x
1
2
3
y
5
1
4
1
25
17.)
x
1
2
3
4
y
4
8
16
32
y
5
25
125
625
a.) Growth or Decay?
b.) Eqn: _____________
y
6
9
12
15
a.) Linear or Exponential?
a.) Linear or Exponential?
14.) Mike started with 3
friends, and each year his
number of friends
doubled.
x
y
0
1
2
3
a.) Linear or Exponential?
24.)
x
1
2
3
4
b.) Eqn: _____________
b.) Eqn: _____________
1
5
a.) Linear/Growth/Decay?
b.) Eqn: _____________
18.) Jenna started with 3
friends, and each year her
number of friends tripled.
x
y
0
1
2
3
a.) Linear or Exponential?
22.)
x
1
2
3
y
2
1
4
1
4
b.) Eqn: _____________
a.) Growth or Decay?
1
2
26.) Make up your own
linear function and write
the equation for it.
x
y
b.) Eqn: _____________
15.) Jason started with 3
friends by end of the first
year, and each year his
number of friends
doubled.
x
y
1
2
3
4
a.) Linear or Exponential?
b.) Eqn: _____________
19.) Jason started with 3
friends by end of the first
year, and each year his
number of friends tripled.
x
y
1
2
3
4
a.) Linear or Exponential?
b.) Eqn: _____________
Eqn: _____________
23.)
x
1
2
3
4
y
18
6
2
2
3
27.) Make up your own
exponential function and
write the equation for it.
x
y
a.) Growth or Decay?
b.) Eqn: _____________
Eqn: _____________