Operations with Functions Class Practice

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

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

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

Given f(x) = x² + 5 and g(x) = 2x³ - 1, find (f/g)(-3).

• -14/55
• 14/55
• 2
• -2

Tags

CCSS.HSF-BF.A.1B

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

• 39
• -27
• -23
• -19

Tags

CCSS.HSF-BF.A.1B

(L3) Given f(x) = x² - 25 and g(x) = x - 5 , find the quotient (f/g)(0), if it exists.

• (f/g)(0) does not exist
• 10
• 5
• 0

Tags

CCSS.HSF-BF.A.1B

f(n)=n²+4n
g(n)=-n-5
Find f(n)+g(n)

• n²+3n-5
• -n³+2n-7
• n³+3n-3n
• n²-3n-5

Tags

CCSS.HSA.APR.A.1

f(x)=2x+4

g(x)=3x²-1

Find f(x)⋅g(x)

• 6x⁴+12x³-4x²-8x

• -6x³+12x²+2x-4

• 6x³+12x²-2x-4

• 5x²-18x+20

Tags

CCSS.HSF-BF.A.1B

 $f\left(n\right)=3n+2$  and  $g\left(n\right)=-3n-4$  Find:  $\left(f+g\right)\left(-10\right)$  

• -2

• 91

• 52

• 31

Tags

CCSS.HSF-BF.A.1B

 $f\left(x\right)=x-1$  and  $g\left(x\right)=2x+2$  Find:  $\left(f\cdot g\right)\left(2\right)$  

• 160

• 100

• 28

• 6

Tags

CCSS.HSF-BF.A.1B