Every function is a relation because the numbers have relationships but not every relation is a function because for it to be a function there has to be one y fo every x if any x(input) has more than one y(output) it's not a function
Answer:
a. 
b. 
c. 
Step-by-step explanation:
a. 
b. 
c. 
Given:
The inequalities are:
or 
To find:
The solution for the given inequalities and graph the solution.
Solution:
We have,
or 
Solve the above inequalities separately.

Divide both sides by -5.

...(i)
And,

Divide both sides by 2.

...(ii)
From (i) and (ii). we get
or 
The interval notation of the solution is
.
The graph of the solution is shown below.
Answer:
d. 8 units
Step-by-step explanation:
If AC = 16 units then the length of CB is 8 units because DB is perpendicular bisector from the centre of circle.
Answer:
-3.125
Step-by-step explanation:
multiply -3*8 to get -24/8 then add the numerator -1/8+-24/8 to get -25/8 then convert by dividing -25/-8 to get -3.125