Real World Modeling with Operations of Functions

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) = 9-3x
g(x) = 5x-7
Find f(x)+g(x). 

• 14x-10

• -8x+2

• 2x+2

• 2x-2

Tags

CCSS.HSF-BF.A.1B

• 9 - 8/3
• 9 + 8/3
• 3
• 1/3

Tags

CCSS.HSF.IF.A.2

• 4

• 9

• 3

• 6

Tags

CCSS.HSF-BF.A.1B

Pick a function that best models the following situation: The population of penguins in Antarctica. 

• Exponential

• Linear

• Quadratic

• Neither

Pick a function that best models the following situation: The flu virus in a high school.

• Exponential

• Linear

• Quadratic

• Neither

Which function best models the height and speed of throwing a ball in the air?

• Linear

• Quadratic

• Exponential

Pick a function that best models the following situation: A speed of a rollercoaster from start to finish. 

• Exponential

• Linear

• Quadratic

• Neither

The function R\left(x\right)=4x^2+2x represents the total revenue in millions of dollars that TikTok’s parent company makes where x is the number of years after the app’s creation in 2016. The cost in millions to run the company is represented by C\left(x\right)=10x+25. Find \left(R-C\right)\left(x\right) and explain what it represents in the context of the problem.