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Practice 20 QuestionsShow answers
• Question 1
60 seconds
Q. What is the vertex of
f(x) = 2(x - 5)2 + 12
(-5, -12)
(5,-12)
(5, 12)
(-5, 12)
• Question 2
60 seconds
Q. What is another name for the x-intercepts of a quadratic?
y-intercept
Zeros
x-axis
They don't have another name
• Question 3
60 seconds Q. What is the intercept form of the quadratic shown?
f(x) = -x(x - 4)
f(x) = x(x - 4)
f(x) = -x(x + 4)
f(x) = x(x + 4)
• Question 4
60 seconds
Q. What are the roots of the function
f(x)= (x - 2)(x + 3)?
x = - 2 or x = 3
x = 2 or x = -3
The are no real roots
x = 2 or x = 3
• Question 5
60 seconds
Q. If the quadratic has a positive 'a' coefficient, what direction does the parabola open?
Up
Down
• Question 6
60 seconds
Q. What is the y-intercept of
f(x)=2x2 + 4x + 6
(6 , 0)
(-6 , 0)
(0, -6)
(0 , 6)
• Question 7
30 seconds
Q. What is the shape created by a football thrown in the air
U
parabola
function
• Question 8
60 seconds
Q. What are the x-intercepts of
f(x)=(x - 10)(x + 10)
10
(10 , 0) and (-10 , 0)
(0, -10) and (0, 10)
0
• Question 9
60 seconds
Q. All Parabolas contain a vertex, when it opens up, this point is called a what?
Maximum
Minimum
• Question 10
60 seconds
Q. True or False:
The domain of a quadratic is all real numbers.
False
True
• Question 11
60 seconds
Q. Is this function wider, narrower, or the same as y=x2?
f(x) = - .4(x-7)2 - 9
Wider
Narrower
Same
• Question 12
60 seconds
Q. Is this function wider, narrower, or the same as y=x2?
f(x) = -6(x-7)2 - 9
Wider
Narrower
Same
• Question 13
60 seconds
Q. What is the
y-intercept of
f(x)=-2x2 + 4x - 6
(0, 6)
(0, -6)
(6, 0)
(-6, 0)
• Question 14
30 seconds
Q. True or False:  To use the quadratic formula equations should be in standard form and set equal to 1.
True
False
• Question 15
120 seconds
Q. Find the axis of symmetry for the function:
f(x) = 2x2 - 4x - 6
x = 1
x = -1
x = 4
x = -4
• Question 16
60 seconds
Q. What is the equation for the axis of symmetry of
f(x)= (x +1)2 + 5
x = 1
x = -1
x = -5
x = 5
• Question 17
30 seconds
Q. Which term makes a function a quadratic function?
x2
x
• Question 18
60 seconds
Q. What are the zeros for the function
f(x) = (x + 7)(x + 5)
(7 , 0) and (5 , 0)
(0 , 7) and (0 , 5)
(-7 , 0) and (-5 , 0)
(7 , 0) and (5 , 0)
• Question 19
60 seconds Q. What is the vertex form of this quadratic?
f(x) = -(x - 2)+ 0
f(x) = (x - 2)+ 0
f(x) = -(x + 2)+ 0
f(x) = (x + 2)+ 0
• Question 20
60 seconds Q. What is the vertex form of this quadratic?