Question

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?

Answer 1

@Nnesha @radar @SithsAndGiggles @undeadknight26 @jessicawade

Answer 2

@AWall10 "which statement"
so do you have options?

Answer 3

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 4

ok
first find the highest value of f(x)
do you know how to do that?

Answer 5

-b/2(a)

Answer 6

well that won't get you the actual value
but that's the first step to it
try using that, what would you get?

Answer 7

-.625?

Answer 8

try again
a = -4
b = 0
c = 5

Answer 9

Oh I missed the 0

Answer 10

0?

Answer 11

So they are both equal

Answer 12

when x = 0 for f(x)
what does f(x) = ?

Answer 13

5

Answer 14

now the max of f(x) is 5
and the max of g(x) is 8

Answer 15

so C

Answer 16

yep

Answer 17

How would you find the x's for
x2 + 4x - 12 = 0.

Answer 18

@mLe

Answer 19

solve for x?

Answer 20

Where would you start?

Answer 21

*confused*
factor?

Answer 22

Can you show me?