Function Operations

When f(x) = 9 - 3x and g(x) = 5x - 7

find f(x) + g(x).

• 14x - 10

• -8x + 2

• 2x + 2

• 2x - 2

Tags

TEKS.MATH.AR.3D

When f(x) = x² + 9 and g(x) = x - 9,

find f(x) - g(x).

• x² + x + 9

• x² - x + 9

• x² - x

• x² - x + 18

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) = 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(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.HSF-BF.A.1B

f(x)= 2x+6
g(x)= -3x+2
Find f(x)-g(x)

• 5x+8
• -x+8
• x+4
• 5x+4

Tags

CCSS.HSF-BF.A.1B

f(x) = 4x-7
g(x) = 2x+6
Find 4f(x)+g(x). 

• 6x-1
• 18x-1
• 10x-22
• 18x-22

Tags

CCSS.HSF-BF.A.1B

f(x) = 6x-8
g(x) = -3x+2
Find 3f(x)+2g(x). 

• -3x+10
• 12x-20
• 3x-6
• 24x-20

Tags

CCSS.HSF-BF.A.1B

f(x) = 6x-8
g(x) = -4x-7
Find 3f(x)-g(x). 

• 22x-17
• 14x-31
• 22x-31
• 10x-1

Tags

CCSS.HSF-BF.A.1B

f(x) = 2x+6
g(x) = 4x-7
Find 5f(x)-3g(x). 

• 6x-1
• -2x+9
• -4x+12
• -2x+51

Tags

CCSS.HSF-BF.A.1B