Quadratic Functions: Factored Form Answers
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The graph of the function f(x) = (x – 4)(x + 1) is shown below.
A
The function is increasing for all real values of x wherex < 0.B
The function is increasing for all real values of x wherex 4.C
The function is decreasing for all real values of x where–1 < x < 4.D
The function is decreasing for all real values of x wherex < 1.5.2
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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 –3.D
The function is negative for all real values of x wherex < –2.3
What is the axis of symmetry of the function f(x)=−(x+9)(x−21)?
A
x=−15B
x=−6C
x=6D
x=154
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)5
The graph of the function f(x) = (x − 3)(x + 1) is shown.
A
all real values of x where x < −1B
all real values of x where x < 1C
all real values of x where 1 < x < 3D
all real values of x where x > 36
The function f(x) = (x − 4)(x − 2) is shown.
A
all real numbers less than or equal to 3B
all real numbers less than or equal to −1C
all real numbers greater than or equal to 3D
all real numbers greater than or equal to −17
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 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 –1.8
What is the midpoint of the x-intercepts off(x) = (x – 2)(x – 4)?
A
(–3,0)B
(–1,0)C
(1,0)D
(3,0)9
What is the y-intercept of the quadratic functionf(x) = (x – 6)(x – 2)?
A
(0,–6)B
(0,12)C
(–8,0)D
(2,0)10
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.Did you find these answers helpful?
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