COMBINING FUNCTIONS

Find (f + g)(x)

• 2x² - 3
• 9
• x⁴ - 3x² - 18
• (x² + 3)/(x² -6)

Tags

CCSS.HSF-BF.A.1B

Find (f - g)(x)

• x² - 3
• 9
• x⁴ - 3x² - 18
• (x² + 3)/(x² - 6)

Tags

CCSS.HSF-BF.A.1B

Simplify by combining like terms:

5a + 2b - 3a + 4

• 8a + 2b + 4

• 2a + 2b + 4

• 8ab

• 4ab + 4

Tags

CCSS.7.EE.A.1

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(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

h(x) = 3x + 3

g(x) = -4x + 1

Find (h + g)(10)

hint: add h(x) and g(x), then plug in 10

• -6

• 6

• 82

• -72

Tags

CCSS.HSF-BF.A.1B

g(x) = 2x - 5

h(x) = 4x + 5

Find (g - h)(3)

hint: subtract g(x) and h(x), then plug in 3

• 18

• 16

• -16

• 28

Tags

CCSS.HSF-BF.A.1B

f(x) = x² - 2x and g(x) = 5x + 3. Then (f-g)(x) =

• x² - 7x + 3

• x² + 3x - 3

• x² + 3x + 3

• x² -7x - 3

Tags

CCSS.HSF-BF.A.1B

Perform (h - g)(n) given the two functions 

 $h\left(n\right)=4n-1$  and  $g\left(n\right)=n^2+3$  

•  $n^2+4n+4$  

•  $3n^3-4n-1$  

•  $-n^2+4n-4$  

•  $n^2-4n+4$  

Tags

CCSS.HSF-BF.A.1B