Recursive Formulas — Unit test

Question 1

An equation for the depreciation of a car is given by y = A(1 – r)t , where y = current value of the car, A = original cost, r = rate of depreciation, and t = time, in years. The value of a car is half what it originally cost. The rate of depreciation is 10%. Approximately how old is the car?

Revolt · Accepted Answer

6.6 years

Question 2

If , what is the value of s?

Revolt · Accepted Answer

–1

Question 3

What is the approximate value of ?

Revolt · Accepted Answer

1.796

Question 4

For what value of n does ?

Revolt · Accepted Answer

Negative three-halves

Question 5

For what value of x does ?

Revolt · Accepted Answer

–9

Question 6

What is the true solution to the equation below?

Revolt · Accepted Answer

and

Question 7

Which expression is equivalent to ?

Revolt · Accepted Answer

4 log Subscript 12 Baseline x + one-half log Subscript 12 Baseline (x cubed minus 2) minus 5 log Subscript 12 Baseline (x + 1)

Question 8

What is the solution of log2 (3x - 7) = 3?

Revolt · Accepted Answer

5

Question 9

Which equation is represented by the graph below?

Revolt · Accepted Answer

y = e Superscript x Baseline minus 4

Question 10

The range of which function is ?

Revolt · Accepted Answer

y = 5x + 2

Recursive Formulas — Unit test Answers

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