 2 years ago
mrshernandez23
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Practice 12 QuestionsShow answers
• Question 1
120 seconds Q. Is this a max or min?
max
min
cannot be determined
• Question 2
120 seconds
Q. True or false:
The solution, root, x-intercept, and zero of a problem 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 3
300 seconds
Q.

Identify the 'b' value: y = 16x2 -8x -24

16

-8

8

-24

• Question 4
120 seconds Q. What are the x- intercepts?
x= 0 and x= -4
x= 0 and x= 4
y= 0
x= 2
• Question 5
120 seconds
Q. Which answer choice describes  y = -3x2 +7x - 2 accurately?
opens up with a maximum
opens up with a minimum
opens down with a maximum
opens down with a minimum
• Question 6
120 seconds
Q. Does the following quadratic equation have a maximum or minimum value? How can you tell?
y=x
²+2x-3
Minimum value, because the a value is positive
Maximum value, because the b value is positive
Maximum value, because the a value is positive
Minimum value, because the c value is negative
• Question 7
120 seconds Q. How many solutions does this graph have?
one
two
no solutions
cannot be determined
• Question 8
300 seconds Q. What is the equation for axis of symmetry?
y=3
x=3
x=5
x=1
• Question 9
900 seconds Q. What is the equation for this parabola in factored form?
y=(x+2)(x-1)
y=(x-2)(x+1)
y=(x-2)(x-1)
y=(x+2)(x+1)
• Question 10
900 seconds Q. A ball is thrown into the air with an upward velocity of 100 ft/s. Its height, h, after t seconds is given by the function
h = -16t2 + 64t + 960.
How many seconds did it take for the ball to reach its maximum height?
10 seconds
64 seconds
960 seconds
2 seconds
• Question 11
900 seconds Q. A ball is thrown into the air with an upward velocity of 100 ft/s. Its height, h, after t seconds is given by the function
h = -16t2 + 64t + 960.
When did the ball hit the ground?
10 seconds
2 seconds
5 seconds
7 seconds
• Question 12
900 seconds Q. A ball is thrown into the air with an upward velocity of 100 ft/s. Its height, h, after t seconds is given by the function
h = -16t2 + 64t + 960.
What is the maximum height?