D4 Unit 8 Comparing Functions Review

Identify the function

• Linear

• Exponential

• Quadratic

Identify the function modeled by the table.

• linear

• quadratic

• exponential

Determine if the table represents a linear, quadratic, or exponential function.

• Linear

• Quadratic

• Exponential

Which of the following has a y-intercept of 4?

A chemist has a 100-gram sample of a radioactive material.  He records the amount of radioactive material every week for 6 weeks and obtains the following data. Write an equation for the function.

• y = -11.7x + 100

• y = 100(1.87)^x
• y = 100(.87)^x
• y = 13x + 100

Write a function modeled by the table.

• y = 8x - 5

• y = 8x - 8

• y = -37(0.78)^x

• y = -13(5)^x

Classify.

Groups:

(a) Linear

,

(b) Quadratic

,

(c) Exponential

• A diver jumps off a diving board.

• 
• 2nd difference

• Tacos are $3 plus $0.25 for toppings.

• A population is growing by 5%.

• 
• 1st difference

• common ratio

• 

Which function could be modeled by the table?

Which function has the greatest value at x = 5?

Write a function modeled by the table.