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Worksheets10-E QUIZ: Quadratic Equations
Total questions: 20
Worksheet time: 16mins
Name
Class
Date
1.
The solutions of the quadratic equation
x2-5x+6=0 are
x2-5x+6=0 are
a)
x=1 or x=-6
b)
x=3 or x=2
c)
x=-3 or x= 2
d)
x=-1 or x=6
2.
In the quadratic formula, if b2-4ac>0, then the quadratic equation has
a)
two imaginary solutions
b)
two different real solutions
c)
two equal real solutions
d)
none of these
3.
To complete the perfect square trinomial in the expression x2-22x+_____, we need to add
a)
11
b)
44
c)
121
d)
144
4.
In the quadratic formula, the expression
b2-4ac is called
b2-4ac is called
a)
discrim
b)
determinant
c)
discriminant
d)
none of these
5.
In the expression 4x2-5x+9 the leading coefficient is
a)
9
b)
-5
c)
-4
d)
4
6.
The solution of the quadratic equation
4x2-5x-9=0 are
4x2-5x-9=0 are
a)
x=-1 or x=9/4
b)
x=1 or x=9/4
c)
x=2 or x=3
d)
x=-2 or x=-3
7.
One solution of the quadratic equation
x2-7x+12=0 is
x2-7x+12=0 is
a)
x=3
b)
x=2
c)
x=-3
d)
x=-2
8.
Which of the followig trinomial is perfect square trinomial?
a)
x2+4x+9
b)
x2-22x-121
c)
x2+4x-9
d)
x2-22x+121
9.
The graph of a quadratic function is called
a)
a line
b)
a hyperbola
c)
a parabola
d)
a cubic
10.
Standard form of a quadratic equation
a)
y=x²
b)
y=ax²+bx+c
c)
y=mx+b
d)
y=x
11.
3x2 - 4 is a quadratic
a)
true
b)
false
12.
Which of the following is NOT a quadratic function
a)
f(x) = -3x2
b)
f(x) = -5x - x2
c)
y = 3x3 - 4x + 5
d)
A = pi.r2
13.
Determine the values of
a, b, and c for
the quadratic equation:
4x2 – 8x = 3
a, b, and c for
the quadratic equation:
4x2 – 8x = 3
a)
a = 4, b = -8, c = 3
b)
a = 4, b =-8, c =-3
c)
a = 4, b = 8, c = 3
d)
a = 4, b = 8, c = -3
14.
What are the x- intercepts?
a)
x= 0 and x= -4
b)
x= 0 and x= 4
c)
y= 0
d)
x= 2
15.
What is the equation for this parabola in factored form?
a)
y=(x+2)(x-1)
b)
y=(x-2)(x+1)
c)
y=(x-2)(x-1)
d)
y=(x+2)(x+1)
16.
If the discriminant is greater than zero, the equation has
a)
1 solution
b)
2 solutions
c)
no solutions
17.
If the discriminant is less than zero, the equation has
a)
1 solution
b)
2 solutions
c)
no solutions
18.
Find the roots of this equation
x2 + x - 6 = 0
x2 + x - 6 = 0
a)
4, -1
b)
3, -2
c)
-6, 1
d)
2, -3
19.
What is the quadratic formula?
a)
b)
c)
d)
20.
What is the equation for standard form?
a)
y = x2 + bx + c
b)
y = ax2 + bx + c
c)
y = mx + b
d)
Ax + By = C
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