Cumulative Exam — Cumulative exam Answers
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Ali graphs the function f(x) = –(x + 2)2 – 1 as shown.
A
The axis of symmetry should be x = –1.B
The axis of symmetry should be x = 2.C
The vertex should be a maximum.D
The vertex should be (–2, 1).42
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Which statements are true? Select three options.
A
The line x = 0 is perpendicular to the line y = –3.B
All lines that are parallel to the y-axis are vertical lines.C
All lines that are perpendicular to the x-axis have a slope of 0.D
The equation of the line parallel to the x-axis that passes through the point (2, –6) is x = 2.E
The equation of the line perpendicular to the y-axis that passes through the point (–5, 1) is y = 1.43
Consider the quadratic function. f(p) = p2 – 8p – 5What are the values of the coefficients and the constant in the function?
A
a = –1, b = –8, c = –5B
a = 1, b = –5, c = –8C
a = 1, b = –8, c = –5D
a = –1, b = –5, c = 844
The graph of which function has a minimum located at (4, –3)?
A
f(x) = x2 + 4x – 11
B
f(x) = –2x2 + 16x – 35C
f(x) = x2 – 4x + 5
D
f(x) = 2x2 – 16x + 3545
The histogram shows the duration, in minutes, of movies in theaters.
A
The mean is less than the median.B
The median is less than the mean.C
The mean is equal to the median.D
The median and mean cannot be compared from a histogram.46
Mr. Walker is looking at the fundraiser totals for the last five years.
A
The median is $1.60 greater than the mean.B
The mean is $1.60 greater than the median.C
The median is $2.82 greater than the mean.D
The mean is $2.82 greater than the median.47
The graph shows the function f(x) = (2.5)x was horizontally translated left by a value of h to get the function g(x) = (2.5)x–h.
A
–2B
0C
2D
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