Question

Please help, I will give a medal.

Functions f(x) and g(x) are described as follows:
f(x) = -4x2 + 5

x g(x)
0 0
1 4
2 8
3 4
4 0

Which statement best compares the maximum value of the two functions? (4 points)


It is equal for both functions.
It is 3 units higher for f(x) than g(x).
It is 3 units lower for f(x) than g(x).
It is 4 units lower for f(x) than g(x).

Answer 1

@amistre64

Answer 2

@zepdrix

Answer 3

@texaschic101

Answer 4

@iGreen

Answer 5

What is the maximum value for f(x)?

Answer 6

Uhm.. I don't really know.

Answer 7

What happens if you have f(0)?

Answer 8

Nothing?

Answer 9

\[f(0) = -4(0)^2 +5 \implies f(0) = 5\] this is your maximum value

Answer 10

So since we know that, what can we say about g(x)?

Answer 11

Max value for f(x) = 5,
look at your table of values and see g(x), what's the maximum value for that?

Answer 12

8?

Answer 13

Yeah, so what's your answer then?

Answer 14

C?

Answer 15

Yup :)

Answer 16

Thank you!

Answer 17

Yw

Answer 18

Thank you!