Answer:
{}
The relation is not a function.
Step-by-step explanation:
By definition, a relation is a function if each input value has only one output value.
Given the relation:
(4,23)
(3,-2)
(-6,5)
(4,6)
The domain is the set of the x-coordinates of each ordered pair (You do not need to write 4 twice):
The range is the set of the y-coordinates of each ordered pair :
Since the input value 4 has two different output values (23 and 6), the relation is not a function.
See below.
The Domain = {-6, 3, 4}.
The Range = {-2, 5, 6, 23}.
The relation is NOT a function because 4 in the domain maps to 6 and 23. In a function an element in the domain must map to one element only in the range.
C. 14 feet
Cos (60) = Adjacent / Hypotenuse
Cos (60) = 7/x
x = 7 / Cos(60)
x = 7 / 0.5
x = 14
The numbers:
1, -3, 2, -9, 3, -15, 4, -21,
are not linear.
If it was linear:
4, 3, 2, 1, -3, -9, -15, -21
(4.5,6) that is what i got.