Operations With Functions

Given
f(x) = 3x² + 7x and g(x) = 2x² - x - 1, find (f + g)(x).

• 11x² - 1
• 5x⁴ + 6x² - 1
• 5x² + 6x - 1
• 5x² + 8x - 1

Tags

CCSS.HSF-BF.A.1C

Given g(x) = -2x+2 and f(x) = 3x²+4, find (g+f)(-3).

• 39
• -27
• -23
• -19

Tags

CCSS.HSF-BF.A.1B

Evaluate f(-2) if f(x) = x+3

• -1
• 1
• 5
• -5

Tags

CCSS.HSF.IF.A.2

(f - g)(x)

• 5x² + 3x

• -3x² - 13x

• 3x² + 3x

• -3x² + 3x

Tags

CCSS.HSF-BF.A.1B

f(x) = 4x + 1 and g(x) = 4x - 3
Find f(x) * g(x)

• 16x² + 8x - 3
• 16x² - 8x + 3
• 16x² - 8x - 3
• 16x² - 16x - 3

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(x) = 3 and g(x) = -2x + 5
Find f(x) * g(x)

• 6x + 15
• 6x - 15
• -6x + 15
• 6x - 8

Tags

CCSS.HSF-BF.A.1B

 $h(x)=-8x+7$   $c(x)=2x-8$  
Find h(x) - c(x)

•  $-10x+15$  

•  $-6x-1$  

•  $-6x+1$  

•  $-10x-1$  

Tags

CCSS.HSF-BF.A.1B

Fill in the blank:
 $\left(f\cdot g\right)\left(-2\right)=$  

(a)  

Tags

CCSS.HSF-BF.A.1B

Evaluate:
 $\left(\frac{f}{g}\right)\left(2\right)=$  

(a)  

Tags

CCSS.HSF-BF.A.1B