What you said doesn't even make sense.
I'll assume you said f(x) = -5x^2 + 4.
This is an even function.
f(-x) = f(x)
(x; y)
The domain is x.
The range is y.
Therefore
(4; -4) → x = 4; y = -4
(2;-3) → x = 2; y = -3
(-5; 1) → x = -5; y = 1
if is (-4; -1) not (4; -1) then
(-4; -1) → x = -4; y = -1
The DOMAIN = {-5; -4; 2; 4}
The RANGE = {-4; -3; -1; 1}
If is (4; -4) and (4; -1) then it is not a function.
Answer:
20
Step-by-step explanation:
Evaluate is just simplifying so
4 times 3 is 12 times the negative makes it -12
then add 32 and -12 together
and you get 20
ANSWER
The radius is 4
EXPLANATION
The given equation is:

We complete the square to get the expression in standard form:


We factor using perfect squares to get:

This implies that,

Comparing to

The radius is r=4
Answer:
(3,10)
Step-by-step explanation:
From f(x)=10 you can see that the value of y,which is equal to f(x), is 10.
Therefore, the only option you could pick is that where y=10,which is the case for option (3,10).