Describe the transformations that produce the graph of g from the graph of f.
; g(x) = -4x3 + 3
A. Stretch vertically by a factor of 3. Reflect it across the x-axis. Shift it 4 units upward.
B. Stretch vertically by a factor of 4. Reflect it across the x-axis. Shift it 3 units downward.
C. Stretch vertically by a factor of 4. Reflect it across the x-axis. Shift it 3 units upward.
D. Stretch vertically by a factor of 4. Reflect it across the y-axis. Shift it 3 units upward.
Answer: C
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A.
B.
C.
D.
Give the focus, directrix, and axis for the parabola.(x + 3)2 = 8y
A. (-3, 0), y = 2, x = -3 B. (-3, 2), y = -2, x = -3 C. (3, 2), y = 2, x = 3 D. (-3, -2), y = -2, x = -3
Determine the x-intercept(s) of the quadratic function .
A.
B.
C. no x-intercept(s)
D.
E.
Find the indicated rate.A person ran 450 meters in 2.25 minutes. What was her rate in meters per minute?
A. 912.5 meters/min
B.
200 meters/min |
C. 450 meters/min
D. 210 meters/min