1
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Which is the graph of f(x) = (x – 1)(x + 4)?
A
OptionB
OptionC
OptionD
Option2
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Which function has two x-intercepts, one at (0, 0) and one at (4, 0)?
A
f(x) = x(x − 4)B
f(x) = x(x + 4)C
f(x) = (x − 4)(x − 4)D
f(x) = (x + 4)(x + 4)3
The graph of the function f(x) = (x + 2)(x + 6) is shown below.
A
The function is positive for all real values of x wherex > –4.B
The function is negative for all real values of x where–6 < x < –2.C
The function is positive for all real values of x wherex < –6 or x > –3.D
The function is negative for all real values of x wherex < –2.4
The graph of the function f(x) = (x +2)(x + 6) is shown below.
A
The domain is all real numbers, and the range is all real numbers greater than or equal to –4.B
The domain is all real numbers greater than or equal to –4, and the range is all real numbers.C
The domain is all real numbers such that –6 ≤ x ≤ –2, and the range is all real numbers greater than or equal to –4.D
The domain is all real numbers greater than or equal to –4, and the range is all real numbers such that –6 ≤ x ≤ –2.5
What is the equation of the quadratic function with a vertex at (2,–25) and an x-intercept at (7,0)?
A
f(x) = (x – 2)(x – 7)B
f(x) = (x + 2)(x + 7)C
f(x) = (x – 3)(x + 7)D
f(x) = (x + 3)(x – 7)6
Which point is an x-intercept of the quadratic function f(x) = (x + 6)(x – 3)?
A
(0,6)B
(0,–6)C
(6,0)D
(–6,0)7
The graph of the function f(x) = –(x + 3)(x – 1) is shown below.
A
The function is positive for all real values of x wherex < –1.B
The function is negative for all real values of x where x < –3 and where x > 1.C
The function is positive for all real values of x wherex > 0.D
The function is negative for all real values of x wherex < –3 or x > –1.8
Which function has a vertex at the origin?
A
f(x) = (x + 4)2B
f(x) = x(x – 4)C
f(x) = (x – 4)(x + 4)D
f(x) = –x29
Which statements about the function are true? Select two options.
A
The vertex of the function is at (1,–25).B
The vertex of the function is at (1,–24).C
The graph is increasing only on the interval −4< x < 6.D
The graph is positive only on one interval, where x < –4.E
The graph is negative on the entire interval–4 < x < 6.10
What is the y-intercept of the quadratic functionf(x) = (x – 8)(x + 3)?
A
(8,0)B
(0,3)C
(0,–24)D
(–5,0)Did you find these answers helpful?
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