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ilearnmathnet AB MCQ Set 20 0/20
Question 1 of 20   |  MCQ  · Level 3
If \(f'(x) > 0\) and \(f''(x) > 0\) for all \(x\), which statement is true about \(g\), the inverse of \(f\)?
A
\(g\) is not a function
B
\(g\) is increasing and concave up everywhere
C
\(g\) is decreasing and concave down everywhere
D
\(g\) is increasing and concave down everywhere
E
\(g\) is decreasing and concave up everywhere
Question 2 of 20   |  MCQ  · Level 3
The region \(R\) in the first quadrant enclosed by the lines \(x = 0\), and \(y = 5\), and the graph of \(y = x^2 + 1\). The volume of the solid generated when \(R\) is revolved about the y-axis is:
A
\(6 \pi\)
B
\(8 \pi\)
C
\(\dfrac{32 \pi}{3}\)
D
\(16 \pi\)
E
\(\dfrac{544 \pi}{15}\)
Question 3 of 20   |  MCQ  · Level 3
Let \(f(x) = \begin{cases} \sin x & \text{if } x < 0 \\ x^2 & \text{if } 0 \leq x < 1 \\ 2 - x & \text{if } 1 \leq x < 2 \\ x - 3 & \text{if } x \geq 2 \end{cases}\). For what values of \(x\) is \(f\) discontinuous?
A
\(0\) only
B
\(1\) only
C
\(2\) only
D
\(0\) and \(2\) only
E
\(0\), \(1\), and \(2\)
Question 4 of 20   |  MCQ  · Level 2
What is \(\operatorname*{lim}\limits_{x \rightarrow \infty} \dfrac{x^2 - 4}{2 + x - 4 x^2}\)?
A
\(-2\)
B
\(-0.25\)
C
\(0.5\)
D
\(1\)
E
DNE
Question 5 of 20   |  MCQ  · Level 2
If \(r\) is positive and increasing, for what value of \(r\) is the rate of increase of \(r^3\) twelve times that of \(r\)?
A
\(\sqrt[3]{4}\)
B
\(2\)
C
\(6\)
D
\(2 \sqrt{3}\)
E
\(\sqrt[3]{12}\)
Question 6 of 20   |  MCQ  · Level 3
The area of the region in the first quadrant between the graph of \(y = x \sqrt{4 - x^2}\) and the x-axis is:
A
\(\dfrac{2}{3} \sqrt{2}\)
B
\(\dfrac{8}{3}\)
C
\(2 \sqrt{2}\)
D
\(2 \sqrt{3}\)
E
\(\dfrac{16}{3}\)
Question 7 of 20   |  MCQ  · Level 1
\(\operatorname*{lim}\limits_{t \rightarrow 0} \dfrac{\sin(2 t)}{8 t} =\)
A
\(0\)
B
\(\dfrac{1}{8}\)
C
\(\dfrac{1}{4}\)
D
\(4\)
E
\(8\)
Question 8 of 20   |  MCQ  · Level 3
\(\displaystyle\int_{0}^{4} \sqrt{16 - x^2} d x =\)
A
\(\dfrac{\pi}{2}\)
B
\(\pi\)
C
\(2 \pi\)
D
\(4 \pi\)
E
\(16 \pi\)
Question 9 of 20   |  MCQ  · Level 2
Evaluate \(\displaystyle\int_{1}^{2} \left(12 + \dfrac{8}{x^3}\right) d x\)
A
\(7\)
B
\(\dfrac{43}{3}\)
C
\(15\)
D
\(23\)
E
None of the above.
Question 10 of 20   |  MCQ  · Level 3
Find the area enclosed by \(y = x - 2\) and \(y = -x^2 + 4 x - 2\).
A
\(\dfrac{3}{5}\)
B
\(\dfrac{3}{2}\)
C
\(\dfrac{8}{3}\)
D
\(\dfrac{11}{3}\)
E
\(\dfrac{9}{2}\)
Question 11 of 20   |  MCQ  · Level 2
\(\operatorname*{lim}\limits_{x \rightarrow 0} \dfrac{x^3 + x^2 - 2 x}{x^3 - x} =\)
A
\(-1\)
B
\(0\)
C
\(1\)
D
\(2\)
E
\(\infty\)
Question 12 of 20   |  MCQ  · Level 3
The region enclosed by the line \(x + y = 1\) and the coordinate axes is rotated about the line \(y = -1\). The volume of the solid is:
A
\(\dfrac{17 \pi}{2}\)
B
\(\dfrac{12 \pi}{4}\)
C
\(\dfrac{2 \pi}{3}\)
D
\(\dfrac{3 \pi}{4}\)
E
\(\dfrac{4 \pi}{3}\)
Question 13 of 20   |  MCQ  · Level 3
\(y = \sin x + \cos x\) is a solution of: I. \(y + \dfrac{d y}{d x} = 2 \sin x\) II. \(y + \dfrac{d y}{d x} = 2 \cos x\) III. \(\dfrac{d y}{d x} - y = -2 \sin x\)
A
I only
B
II only
C
III only
D
I and III
E
II and III
Question 14 of 20   |  MCQ  · Level 3
\(f(x) = n + e^{2 x}\) for \(x \geq 0\) and \(f(x) = 4 + m x\) for \(x < 0\) is differentiable at \(x = 0\). \(f(n - m) = ?\)
A
\(2 + e\)
B
\(3 + e^2\)
C
\(e^2\)
D
\(2 e\)
E
\(e^3\)
Question 15 of 20   |  MCQ  · Level 2
If \(\dfrac{d y}{d x} = \sin x^3\), \(\dfrac{d^2 y}{d x^2} =\)
A
\(3 x^2 \cos x^3\)
B
\(-3 x^2 \cos(x^3)\)
C
\(x^2 \cos(3 x^2)\)
D
\(-x^2 \cos(3 x^2)\)
E
\(\cos(x^3)\)
Question 16 of 20   |  MCQ  · Level 1
Which is an antiderivative of \(3^x\)?
A
\(\dfrac{3^x}{\ln 3} + \ln 3\)
B
\(\dfrac{3^{3 x}}{\ln 3} + \ln 3\)
C
\(\dfrac{x^3}{\ln 3} + \dfrac{1}{\ln 3}\)
D
\(x + 3 \ln 3\)
E
\(3^x + \ln 3\)
Question 17 of 20   |  MCQ  · Level 1
If \(f(x) = e^x\), then \(\ln[f'(2)] =\)
A
\(2\)
B
\(0\)
C
\(\dfrac{1}{e^2}\)
D
\(2 e\)
E
\(e^2\)
Question 18 of 20   |  MCQ  · Level 3
If \(y^2 - 2 x y = 16\), then \(\dfrac{d y}{d x} =\)
A
\(\dfrac{x}{y - x}\)
B
\(\dfrac{y}{x - y}\)
C
\(\dfrac{y}{y - x}\)
D
\(\dfrac{y}{2 y - x}\)
E
\(\dfrac{2 y}{x - y}\)
Question 19 of 20   |  MCQ  · Level 3
A person 2 meters tall walks directly away from a streetlight that is 8 meters above the ground. If the person is walking at a constant rate and the person's shadow is lengthening at a rate of \(\dfrac{4}{9}\) meter per second, at what rate, in meters per second, is the person walking?
A
\(\dfrac{4}{27}\)
B
\(\dfrac{4}{9}\)
C
\(\dfrac{3}{4}\)
D
\(\dfrac{4}{3}\)
E
\(\dfrac{16}{9}\)
Question 20 of 20   |  MCQ  · Level 2
Let \(f\) and \(g\) be differentiable functions. If \(g\) is the inverse function of \(f\) and if \(g(-2) = 5\) and \(f'(5) = -\dfrac{1}{2}\), then \(g'(-2) =\)
A
\(2\)
B
\(\dfrac{1}{2}\)
C
\(\dfrac{1}{5}\)
D
\(-\dfrac{1}{5}\)
E
\(-2\)

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Reference Sheet

Area & Circumference

Circle$A = \pi r^2$,  $C = 2\pi r$
Rectangle$A = lw$
Triangle$A = \tfrac{1}{2}bh$
Trapezoid$A = \tfrac{1}{2}(b_1+b_2)h$

Volume

Box$V = lwh$
Cylinder$V = \pi r^2 h$
Sphere$V = \tfrac{4}{3}\pi r^3$
Cone$V = \tfrac{1}{3}\pi r^2 h$
Pyramid$V = \tfrac{1}{3}lwh$

Triangles

Pythagorean Thm$a^2 + b^2 = c^2$
30-60-90sides: $1,\, \sqrt{3},\, 2$
45-45-90sides: $1,\, 1,\, \sqrt{2}$
Triangle Anglessum $= 180°$

Other Facts

Circle Degrees$360° = 2\pi \text{ rad}$
Exterior Angle= sum of non-adjacent interior angles

The number of degrees of arc in a circle is 360. The number of radians of arc in a circle is $2\pi$.

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