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ilearnmathnet AB MCQ Set 20
20 Questions
Question 1 of 20
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ilearnmathnet AB MCQ Set 20
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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
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B
\(g\) is increasing and concave up everywhere
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C
\(g\) is decreasing and concave down everywhere
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D
\(g\) is increasing and concave down everywhere
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E
\(g\) is decreasing and concave up everywhere
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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
\(6 \pi\)
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B
\(8 \pi\)
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C
\(\dfrac{32 \pi}{3}\)
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D
\(16 \pi\)
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E
\(\dfrac{544 \pi}{15}\)
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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
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B
\(1\) only
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C
\(2\) only
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D
\(0\) and \(2\) only
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E
\(0\), \(1\), and \(2\)
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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
\(-2\)
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B
\(-0.25\)
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C
\(0.5\)
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D
\(1\)
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E
DNE
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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
\(\sqrt[3]{4}\)
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B
\(2\)
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C
\(6\)
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D
\(2 \sqrt{3}\)
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E
\(\sqrt[3]{12}\)
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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:
If \(y^2 - 2 x y = 16\), then \(\dfrac{d y}{d x} =\)
A
\(\dfrac{x}{y - x}\)
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B
\(\dfrac{y}{x - y}\)
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C
\(\dfrac{y}{y - x}\)
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D
\(\dfrac{y}{2 y - x}\)
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E
\(\dfrac{2 y}{x - y}\)
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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
\(\dfrac{4}{27}\)
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B
\(\dfrac{4}{9}\)
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C
\(\dfrac{3}{4}\)
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D
\(\dfrac{4}{3}\)
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E
\(\dfrac{16}{9}\)
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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
\(2\)
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B
\(\dfrac{1}{2}\)
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C
\(\dfrac{1}{5}\)
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D
\(-\dfrac{1}{5}\)
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E
\(-2\)
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Graphing Calculator
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 $2\pi$.