Answer:
It's fine. It is a function. The language can be very convoluted. Put simply a domain value cannot have 2 different range values.
Step-by-step explanation:
The confusing part I think, is probably the fact that -1 and 1 both have an answer of 5.
That's fine. Parabolas do that and they are functions. Two different xs can have the same value. The thing that eliminates functions is when the x value (the domain) has two different y values (the range values). Then you don't have a function.
To try and make it clearer if 1 pointed at both 3 and 5 you would not have a function.
Thanks for the free points
1/2(12+8)=10 Answer is 12
Answer:
The radius of the aquarium tank is 
Step-by-step explanation:
we know that
Applying the Tangent Secant Theorem
we have that
substitute
Solve for D
Find the radius
The radius is half the diameter
