Function Operations

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

• 2x+15

• 10x-15

• -2x-15

• 10x+1

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

• 9x-6

• 9x-10

• 3x-6

• 3x+6

Tags

CCSS.HSF-BF.A.1B

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

• 4x-8

• -4x-8

• 8x-8

• -8x-8

Tags

CCSS.HSF-BF.A.1B

Find f(x) - g(x)

• 2x² + 8x - 8

• 3x² + 8x - 8

• 2x² + 8x + 8

• 2x² + 4x - 8

Tags

CCSS.HSF-BF.A.1B

Answer explanation

To find g(x) - h(x), we need to subtract the functions. If g(x) = 3x and h(x) = 8, then g(x) - h(x) = 3x - 8, which matches the correct answer choice.

Tags

CCSS.HSF.BF.A.1

Find f(x) - g(x)

• x² - 7x + 2

• -x² + 7x + 2

• -x² - 7x + 2

• -x² - 7x + 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