Question

Answer check?

Answer 1

The quadratic functions f(x) and g(x) are described as follows:

f(x) = −2x2 + 9


x g(x)
0 −5
1 3
2 11
3 3
4 −5


Which statement best compares the maximum value of the 2 functions?
It is the same for both functions.
f(x) has a greater maximum value than g(x).
g(x) has a greater maximum value than f(x).
The maximum values cannot be determined.

Answer 2

I think its D

Answer 3

@Loser66 @Luigi0210

Answer 4

why D?

Answer 5

Because they are infinite right? they just keep going?

Answer 6

obviously, when x =2, g(x) =11 is maximum value of g

Answer 7

The maximum value of f is defined by finding out the vertex of parabola, x = -b /2a =0, and when x =0, y =9, hence the maximum value of f is 9. Compare the two, which one is greater?

Answer 8

g

Answer 9

yup

Answer 10

thank you