77 Function Tables Math
Bạn đang xem bản rút gọn của tài liệu. Xem và tải ngay bản đầy đủ của tài liệu tại đây (957.18 KB, 38 trang )
Function Tables
CCSS6.EE.9: Represent and analyze
quantitative relationships between
dependent and independent variables.
Please copy your Agenda for the week.
You will get your test back Tuesday.
Materials needed today: Journal, pencil, glue,
(ruler on Tuesday), highlighter, scissors, Easter
candy for your Math teacher!
Vocabulary Flip Chart
Trim out the flip chart to fit in your Journal. Only cut
between the word boxes on the top. Glue into Journal.
VOCABULARY
A function is a relation that assigns exactly one
output value to one input value. The output depends
on the input. The function rule describes the
relationship between each input and output. You can
organize the input-output values and the function
rule in a function table.
In a function, the input value is also known as the
independent variable, since it can be any number
you choose. The value of the output depends upon
the input value, so the output value is known as the
dependent variable.
Instructions:
Look at the input value and determine
what rule applies to get the output
value.
Input
1
2
3
4
Output
6
7
8
9
Rule : add 5, n+5
Input
Output
1
3
2
6
3
9
4
12
RULE: multiply by 3,
3n or 3 • n
Good job. Keep going.
Input
Output
1
10
2
20
3
30
4
40
Rule:
multiply by 10,
10 • n or 10n
Input
Output
4
2
7
5
10
8
30
28
Rule: subtract 2
or n - 2
Input
Output
16
8
24
16
28
20
60
52
Rule: Subtract 8, or
n-8
Input
Output
5
50
8
80
20
200
100
1,000
Rule: multiply by 10;
10 • n, or 10n
Try more examples on this website:
/>unctiontable4l.cfm
Input
Independent variable
x-axis
Domain
Output
Dependent variable
y-axis
Range
Solution:
You can see that you obtain each output
by adding 5 to the input.
Answer: The function rule given by the table
is
b=a+5
How can a function table help you
find the input or the output?
When data is organized, we can use the function rule and
the input to find the output or work backward using the
output and the function rule to find the input.
Are they functions?
A.
B.
B. IS NOT A FUNCTION! Why not?
input x
Output y
1357
0246
Input a
Output b
2 46 2
1 85 1
VOCABULARY
The set of all input values is called the domain of a
function. The set of all output values is called the range
of a function.
Practice what you have learned.
Complete Task Cards 1 – 4.
Due Tuesday.
