Find the vertex of the parabola, and determine whether the parabola opens upward, downward, to the left, or to the right.x = -(y + 4)2 + 8
A. (16, -8), right
B. (-4, 8), left
C. (8, -4), left
D. (8, -4), right
Answer: C
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For the given function f(x), find f-1(x) and graph the function and its inverse.f(x) = 
x
A. f(x) = 
x, f-1(x) = log5/2 x
f(x)
B. f(x) = 
x, f-1(x) = log5/2 x
f(x)
C. f(x) = 
x, f-1(x) = log5/2 x
| f-1(x) | f(x) |
D. f(x) =
x, f-1(x) = log5/2 xf(x)
Provide an appropriate response.Show that if a particle's velocity vector is always orthogonal to its acceleration vector then the particle's speed is constant.
What will be an ideal response?
Write the expression in the standard form a + bi.(7 + 8i) - (-6 + i)
A. -13 - 7i B. 13 - 7i C. 1 + 9i D. 13 + 7i
Find all cube roots of the complex number. Leave answers in trigonometric form.2 + 2i
A. 
cis 20°, 
cis 140°, 
cis 260°
B. 
cis 20°, 
cis 140°, 
cis 260°
C. 
cis 30°, 
cis 150°, 
cis 270°
D. 
cis 20°, 
cis 140°, 
cis 260°