Answers AZ-Common Core Algebra II BRecursive Formulas

Recursive Formulas — Cumulative exam Answers

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What is the solution to

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What is the difference?

StartFraction x squared + 4 x minus 1 Over x (x + 2) EndFraction

StartFraction x squared + 4 x + 1 Over x (x + 2) EndFraction

StartFraction 4 Over negative 1 (x squared + x minus 2) EndFraction

StartFraction x squared + 6 x + 1 Over x (x + 2) EndFraction

The graph of a logarithmic function is shown below.What is the domain of the function?

x < 0

x > 0

x < 1

all real numbers

What is the value of ?

–4.00

–0.25

1.51

2.41

Which of the following shows the true solution to the logarithmic equation

x = negative 1

x = 1

and

, , and

What is the solution to the equation ?

x = –3

x = –3 and x = 0

x = 0 and x = 3

x = 3

What is the solution of ?

c = 0 and c = 3

all real numbers

all real numbers, except c ¹ 0 and c ¹ 3

no solution

Which of the following is the inverse of ?

y = log Subscript one-twelfth Baseline x

y = log Subscript 12 Baseline StartFraction 1 Over x EndFraction

y = log Subscript x Baseline 12

y = log Subscript 12 Baseline x

The amount of a sample remaining after t days is given by the equation , where A is the initial amount of the sample and h is the half-life, in days, of the substance. A sample contains 18% of its original amount of Radon-222. The half-life of Radon-222 is about 3.8 days. Which is the best estimate for the age of the sample?

1.5 days

2.5 days

9.4 days

21.1 days

If , what is the value of c?

What is the solution of ?

x = –2500

x = –50

x = –2.5

no solution

The graph below shows the function .Which statement is true?

There is a hole at x = 3 and an asymptote at x = –1.

There is an asymptote at x = –1 and no hole.

There is a hole at x = 3 and no asymptote.

There is an asymptote at x = 3 and a hole at x = –1.

What is the solution of ?

x = 5

x = 13

x = 20

x = 328

Which equation is the inverse of y = x2 + 16?

y = x2 – 16

y = plus-or-minus StartRoot x EndRoot minus 16

y = plus-or-minus StartRoot x minus 16 EndRoot

y = x2 – 4

For the inverse variation equation xy = k, what is the value of x when y = 4 and k = 7?

Four-sevenths

Seven-fourths

The graph of y = is a horizontal translation of y = . Which is the graph of y = ?

On a coordinate plane, a cube root function goes through (negative 8, negative 2), has an inflection point at (2.5, 0), and goes through (10, 2).

On a coordinate plane, a cube root function goes through (negative 10, negative 2), has an inflection point at (negative 3, 0), and goes through (4, 2).

On a coordinate plane, a cube root function goes through (negative 10, 1), has an inflection point at (0, 3), and goes through (8, 5).

On a coordinate plane, a cube root function goes through (negative 8, negative 5), has an inflectoin point at (0, negative 3), and goes through (8, negative 1).

By what approximate factor is the intensity of an earthquake with magnitude 5.4 greater than an earthquake with magnitude 5.3?M = the magnitude of an earthquakeI = the intensity of an earthquakeI0 = the smallest seismic activity that can be measured, which is 1