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

f(x) = −8x2 + 7

x g(x)
0 0
1 2
2 6
3 2
4 0


Which of the following statements best compares the maximum value of the 2 functions? (5 points)


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.

Respuesta :

Answer:

(B) f(x) has a greater maximum value than g(x).

Step-by-step explanation:

Given [tex]f(x) = -8x^2 + 7[/tex]

First, we determine the maximum point of f(x).

f(x) is at maximum at the point of symmetry, i.e. where [tex]x=-\dfrac{b}{2a}[/tex]

a=-8, b=0

[tex]x=-\dfrac{0}{2*-8}=0[/tex]

[tex]f(0) = -8(0)^2 + 7=7[/tex]

  • The maximum point of f(x) is (0,7)
  • The maximum point of g(x) is (2,6)

Therefore, f(x) has a greater maximum value than g(x).

The correct option is B.

Answer:

B is correct

Step-by-step explanation:

I took the test and got it right