NEW
Font size
S
M
L
XL
WorksheetsQuadratic Formula and Discriminant
Total questions: 10
Worksheet time: 3hrs 30mins
Name
Class
Date
1.
The discriminant is
a)
aX2 + bX + c
b)
b - 4ac
c)
b2 - 4ac
d)
b2 + 4ac
2.
____________
For the function above, is the discriminant positive, negative, or zero?
For the function above, is the discriminant positive, negative, or zero?
a)
Positive
b)
Negative
c)
Zero
d)
Not Sure
3.
Use the quadratic formula to solve 2x2 + 2x - 12?
a)
-2, 3
b)
2, 3
c)
2, -3
d)
-2, -3
4.
.How many roots does this parabola have?
a)
3
b)
2
c)
0
d)
1
5.
If the discriminant is positive, then the solution will be
a)
one real solution
b)
two real solutions
c)
no real solutions
d)
one imaginary solution
6.
What does the discriminant tell us?
a)
The maximum or minimum
b)
The y-intercept
c)
The number and type of solutions
d)
The axis of symmetry
7.
Which graph has a discriminant = 0?
a)
None of them
b)
Red
c)
Blue
d)
Green
8.
Use the discriminant to determine the number of solutions 4x2 + 4x + 1 = 0 has?
a)
0
b)
1
c)
2
d)
More than 2
9.
Solve Using the Quadratic Formula
x2 + 4x - 40 = -8
x2 + 4x - 40 = -8
a)
-10 & -4
b)
-4 & 10
c)
-8 & 4
d)
8 & -4
10.
Use the quadratic formula to find the solutions for
y = -x2 - 5x + 12
y = -x2 - 5x + 12
a)
-4.9 and -0.1
b)
-8.54 and 8.54
c)
-0.45 and 3.55
d)
-6.77 and 1.77
Reset
