Vocabulary
A "This" from a set X to a set Y assigns to each element of X exactly one element of Y.
What is a "Function"?
What is the rule of this table
in 2 = out 1
in 3 = out 2
in 4 = out 3
x-1=y
In 10 = Out 12
In 15 = Out 17
In 20 = Out ?
22
x + 21 = 85
x = 64
t + 24
t = 63
87
The set of values (elements) we are allowed to plug into our function.
What is the "Domain"?
What is the equation of
In 3 = out 6
In 6 = out 9
In 9 = out 12
x+3=7
In 4 = Out 1
In 8 = Out 2
In 12 = Out ?
3
8x = 96
x = 12
7x
x = 9
63
The set of values (elements) we obtain from plugging Domain values into our function.
What is the "Range"?
In 12 = Out 24
In 10 = Out 20
In 8 = Out 16
a x 2 = b
In 22 = Out 17
In 26 = Out 21
In 30 = Out ?
25
x / 25 = 100
x = 2500
4x + 17
x = 12
65
A collection of elements (usually numbers).
What is a "Set"?
What is the equation for this table?
In 2 = Out 12
In 4 = Out 24
In 6 = Out 36
a x 6 = b
In 3 = Out 1
In 9 = Out 3
In 15 = Out ?
5
4x + 25 = 105
x = 20
(63 - 9) / x
x = 9
A table that shows the relationship between sets of numbers that always follow the same rule.
What is an "Input/Output Table"?
What is the equation of this table ?
In 16 = Out 2
In 24 = Out 3
In 32 = Out 4
a / 8 = b
In 9 = Out 45
In 11= Out ?
55
x2 + 5 = 30
x = 5
(m-2) x 5 +3
m = 7
28