Modeling Functions Using Finite Differences — Unit test

Question 1

Janis was offered two different jobs when she graduated from college. She made the graph and table to show how much she would earn over time at each job.Earnings over Time for Job 1Earnings over Time for Job 2When will Janis’s salary be the same for job 1 and job 2, and how much will she be earning at that point?

Revolt · Accepted Answer

The salaries will be the same in year 20, and she will be earning $80,000.

Question 2

What type of function is represented in the table?

Question 3

The table shows the value of an account x years after the account was opened.

Revolt · Accepted Answer

$8,980

Question 4

Janna is making a prediction of the frequency of a key that is 12 keys from middle C.

Revolt · Accepted Answer

extrapolation, because a key that is 12 keys from middle C is outside the data set

Question 5

The amount of water pressure exerted on a scuba diver varies with depth. The graph below shows the relationship between pressure, p, in atmospheres, and depth, d, in ft.Depth of Water and Water PressureBased on the information in the graph, what is the water pressure at sea level?

Revolt · Accepted Answer

1 atm

Modeling Functions Using Finite Differences — Unit test Answers

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