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Practice 15 QuestionsShow answers
• Question 1
900 seconds
Q. What is the vertex?
y = -2x2 + 4x + 3
(0, 3)
(-1, 5)
(1, 5)
(1, -5)
• Question 2
900 seconds
Q. What is the vertex?
f(x) = 2(x - 5)2 + 12
(-5, -12)
(5,-12)
(5, 12)
(-5, 12)
• Question 3
900 seconds
Q. What is the axis of symmetry?
f(x) = x- 8x + 15.
x = -4
x = 4
y = 4
y = -4
• Question 4
900 seconds
Q. What is the axis of symmetry?
y = 3x- 6x + 4
x=1
x=-6
x=2
x=-1
• Question 5
900 seconds
Q. True or false:
The root, x-intercept, and zero are all the same thing
True
False, because the solution and root are the same but the x-intercept and zero are different
False, because the x-intercept and root are the same but the zero and solution are different
False, they are all different
• Question 6
900 seconds
Q. What is the vertex?
f(x) = -x- 4x + 12.
(-2, 16)
(2, 0)
(2, 4)
(-2, 4)
• Question 7
900 seconds Q. What is the vertex?
(2, 4)
(3, -1)
(0, 8)
(4, 2)
• Question 8
900 seconds
Q. What do we call the highest or lowest point of a quadratic?
parabola
vertex
graph
point
• Question 9
900 seconds Q. How many zeros does this parabola have?
3
2
0
1
• Question 10
900 seconds Q. What are the x- intercepts?
x= 0 and x= -4
x= 0 and x= 4
y= 0
x= 2
• Question 11
900 seconds
Q. What is the y-intercept?
f(x) = 2(x - 5)2 + 12
(0, -5)
(0,12)
(0, 62)
(0, 212)
• Question 12
900 seconds
Q. What is the y-intercept?
f(x) = -2x2 + 4x - 6
(0, 6)
(0, -6)
(6, 0)
(-6, 0)
• Question 13
900 seconds Q. If each mark on the x-axis represents one second, when did the object reach its maximum height?
2.5 seconds
2 seconds
5.5 seconds
3 seconds
• Question 14
900 seconds Q. If each mark on the x-axis represents one second, when did the object reach the ground?
2.5 seconds
6 seconds
5.5 seconds
5 seconds
• Question 15
900 seconds Q. The object was thrown or launched from what position?