10/14/2016
Describe the pattern. Complete the
diagram.
Prebell
1. Write 2.74 as a mixed number.
Determine whether each relation is a function. If it is,
state the domain and range.
2. { 7, 16 , −3, 4 , 11, −5 , −7, 8 , −3, 4 }
3.
𝒙 −11 23
74
16
𝒚
17
−2 −10 27
15
21
5
−8 23
As each input
____________ by ___,
the output
____________ by ___.
−2
18 −31
Describe the pattern. Complete the
diagram.
As each input
____________ by ___,
the output
____________ by ___.
Describe the pattern. Complete the
diagram.
As each input
____________ by ___,
the output
____________ by ___.
Writing Function Rules
• Look at each x and its corresponding y.
• Is there a pattern?
• What is happening to x to make it equal y?
x
y
0
4
1
5
2
6
3
7
x
y
3
9
5
15
7
21
1. Find the change in x-values.
2. Find the change in y-values.
9
27
3. Divide change in y by change in x. This is the
coefficient.
change in 𝑦
change in 𝑥
1
10/14/2016
x
y
-2
-6
0
4
2 4
14 24
x
y
3
-1
7
7
11 15
15 23
4. Write your equation.
𝑦 = ________𝑥
5. Pick an ordered pair and plug it into your equation.
Evaluate.
6. What do you need to add or subtract to equal y?
This is your constant.
𝑦 = __________𝑥 + ___________
x
y
1
4
-3 -7 -11
12 20 28
x
y
3
1
9 15 21
19 37 55
Write the function rule for the table
below.
𝒙
10
14
18
22
𝒚
8
10
12
14
2
10/14/2016
Write the function rule for the table
below.
𝒙
−2
1
4
7
𝒚
−4
−7
−10
−13
Write the function rule for the table
below.
𝒙
𝒚
−9 33
−6 24
0
6
5 −9
Write the function rule for the table
below.
𝒙
0
2
5
6
𝒚
−1
3
9
11
Exit Card
3