Functions Operations

Given g(x) = -2x+2 and f(x) = 3x²+4, find (g+f)(-3).

• 39
• -27
• -23
• -19

Tags

CCSS.HSF-BF.A.1B

Given
f(x) = 3x² + 7x and g(x) = 2x² - x - 1, find (f + g)(x).

• 11x² - 1
• 5x⁴ + 6x² - 1
• 5x² + 6x - 1
• 5x² + 8x - 1

Tags

CCSS.HSF-BF.A.1B

f(x) = 4x + 1 and g(x) = 4x - 3
Find f(x) * g(x)

• 16x² + 8x - 3
• 16x² - 8x + 3
• 16x² - 8x - 3
• 16x² - 16x - 3

Tags

CCSS.HSF-BF.A.1B

f(n)=x²+1
g(n)=2x-5
Find f(n)-g(n)

• x²-2x+6
• -x²+2x+4
• -x²-2x-6
• x²-2x-4

Tags

CCSS.HSF-BF.A.1B

If $f\left(x\right)=5x$ ,  $g\left(x\right)=-2x+1$ , and  $h\left(x\right)=x^2+6x+8$ , find  $f\left(g\left(-2\right)\right)$ .  (Your answer should be a number.)

Tags

CCSS.HSF-BF.A.1C

If $f\left(x\right)=5x$ ,  $g\left(x\right)=-2x+1$ , and  $h\left(x\right)=x^2+6x+8$ , find  $h\left(f\left(-5\right)\right)$ .  (Your answer should be a number.)

Tags

CCSS.HSF-BF.A.1C

If  $f\left(x\right)\ =\ 3x^2-4$ and $g\left(x\right)=x^2-8x+4$ , then  $\left(f-g\right)\left(x\right)=$ 

•  $2x^2-8x-8$  

•  $2x^2+8x-8$  

•  $2x^2-8x$  

•  $2x^2+8x$  

Tags

CCSS.HSF-BF.A.1B

When f(x) = x² - 9

and g(x) = x + 3 ,

find g(x) / f(x).

• x - 3

• 1/ (x - 3)

• x + 3

• 1/ (x + 3)

Tags

CCSS.HSF-BF.A.1B