Function Operations Review

f(n)=2n+1
g(n)=3n
Find f(n)+g(n).

• 5n+1
• -5n+1
• -2n+1
• -6n-1

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

f(x) = 4x+8
g(x) = x+3,
Find f(x) * g(x).

• 4x²+24
• 4x²+20x+24
• 4x²+12x+24
• 4x²+4x+24

Tags

CCSS.HSF-BF.A.1B

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(x) = 9-3x
g(x) = 5x-7
Find f(x)+g(x). 

• 14x-10
• -8x+2
• 2x+2
• 2x-2

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(n)=3x-4
g(n)=x³-2x²
Find (f-g)(n).

• -x²+x+2
• -x³+2x²+3x-4
• -x³+x²-4
• -x³-2x²-3x+4

Tags

CCSS.HSF-BF.A.1B

f(x)=x+3
g(x)=x-2
Find (g/f)(x) and the domain restriction.

• (x+3)/(x-2); domain: x≠2
• (x-2)/(x+3); domain: x≠-3
• -2/3; domain: ℝ
• 3/2; domain: ℝ

Tags

CCSS.HSF-BF.A.1B

f(x) = 3x-9
g(x) = 2x+4
Find f(x)/g(x) and the domain restriction.

• 3x-9/2x+4; domain: x≠2
• 3x-9/2x+4: domain: x≠3
• 3x-9/2x+4; domain: x≠ -2
• 3x-9/2x+4; domain: x≠ -3

Tags

CCSS.HSF-BF.A.1B

g(x) = -3x+7
h(x) = -x-10
Find g(x)/h(x) and the domain restriction.

• -3x+7/-x-10; domain: x≠7/3
• -3x+7/-x-10; domain: x≠-7/3
• -3x+7/-x-10; domain: x≠10
• -3x+7/-x-10; domain: x≠-10

Tags

CCSS.HSA.APR.D.7