Lesson 8.3: Quadratic Functions: Factored Form Answers
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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)2
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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)3
The graph of the function f(x) = –(x + 6)(x + 2) is shown below.
A
The function is increasing for all real values of x where x < –4.B
The function is increasing for all real values of x where–6 < x < –2.C
The function is decreasing for all real values of x where x –2.D
The function is decreasing for all real values of x wherex < –4.4
Which is the graph of f(x) = –(x + 3)(x + 1)?
A
OptionB
OptionC
OptionD
Option5
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 –1.6
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)7
What is the axis of symmetry of the function f(x)=−(x+9)(x−21)?
A
x=−15B
x=−6C
x=6D
x=158
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
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 < –2.10
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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