smchamscshannonmarie smchamscshannonmarie
  • 20-12-2016
  • Advanced Placement (AP)
contestada

f f(x) = 3x2 + 1 and g(x) = 1 – x, what is the value of (f – g)(2)?
12
14
36
38

Respuesta :

diene
diene diene
  • 21-12-2016
f-g = 3x^2+1-(1-x) = 3x^2+x
(f-g)(2)=3*2^2 + 2 = 14
Answer Link
lublana
lublana lublana
  • 03-12-2019

Answer:

B.14

Explanation:

We are given that

[tex]f(x)=3x^2+1[/tex]

[tex]g(x)=1-x[/tex]

We have to find the value of (f-g)(2)

[tex](f-g)(x)=f(x)-g(x)[/tex]

[tex](f-g)(x)=3x^2+1-(1-x)=3x^2+1-1+x=3x^2+x[/tex]

Substitute x=2

Then, we get

[tex](f-g)(2)=3(2)^2+2[/tex]

[tex](f-g)(2)=12+2=14[/tex]

Hence, the value of (f-g)(2)=14

Answer Link

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