Quadratic Formula and Discriminant Practice

Quiz
•
Mathematics
•
10th Grade
•
Hard
Standards-aligned
Anthony Clark
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Consider the equation 2x^2 + 8x + k = 0. What is the discriminant in terms of k?
64 - 8k
16 - 2k
64 - 2k
16 - 8k
Tags
CCSS.HSA-REI.B.4B
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If the solutions of a quadratic equation are 9 and -9, what is the value of b^2 - 4ac?
0
81
-81
162
Tags
CCSS.HSA-REI.B.4B
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following equations has no real solutions?
x^2 - 8x - 16 = 0
-2x^2 + 5x - 6 = 0
-x^2 + 6x + 1 = 0
Tags
CCSS.HSA-REI.B.4B
CCSS.HSN.CN.C.7
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
0
1
2
3
Tags
CCSS.HSA-REI.B.4B
CCSS.HSN.CN.C.7
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How many non-real solutions do the equations of the following quadratic curves have?
0
1
2
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How many x-intercepts does the parabola have if b^2 - 4ac = -5?
0
1
2
3
Tags
CCSS.HSA-REI.B.4B
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
For the graph labeled 'a', determine whether the coefficient 'a' in the quadratic function f(x) = ax^2 + bx + c is greater than 0 or less than 0.
a > 0
a < 0
Tags
CCSS.HSF-IF.C.7A
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