Operations on Functions

Given the functions f(x) = - 3x² - 2 and g(x) = 3x, find f(x) - g(x).

• 3x²-3x+2
• -2
• -3x²-3x-2
• -6x-2

Tags

CCSS.HSF-BF.A.1B

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

• -2
• -3x²+3x-2
• -3x²-3x+2
• 6x-2

Tags

CCSS.HSF-BF.A.1B

g(n)=4n-4

f(n)=5n+4

Find (g+f)(n)

• 20n

• 9n+8

• 9n-8

• 9n

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

If g(x) = 6x + 4  and
f(x) = 2x - 7
Find f(x) * g(x)

• 8x - 3
• 4x + 11
• 12x² - 28
• 12x² - 34x - 28

Tags

CCSS.HSA.APR.A.1

 f(x) = 2x+1 and g(x) = 4x-5 
Find f(8) - g(8) 

• -20
• 10
• -10
• 20

Tags

CCSS.HSF.IF.A.2

f(x) = 2x and g(x) = 2x-7 
Find (f+g)(2).

• -7
• 1
• -1
• 8

Tags

CCSS.HSF-BF.A.1B

f(x) = 2x and g(x) = 2x-7

Find (f-g)(4).

• 0

• -9

• 7

• -8

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