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WorksheetsMATH -9 QUIZ NO.1 QUADRATIC EQUATION
Total questions: 15
Worksheet time: 51mins
Name
Class
Date
1.
What should you do first in solving this equation?
x2 + 6x - 13 = 3
x2 + 6x - 13 = 3
a)
Get factored form
b)
Write down: a=1, b=6, c=-13
c)
Make it equal 0 by subtracting 3 on each side
d)
Type it all in a calculator.
2.
Convert x2-6x+9 to factored form and identify the solution.
a)
(x-3)(x-3); x=3
b)
(x+3)(x+3); x=-3
c)
(x+4)(x+2); x=-4, -2
d)
Not factorable
3.
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
4.
Solve by taking square roots:
4m2 - 100 = 0
4m2 - 100 = 0
a)
m=25, -25
b)
m=96
c)
m=5, -5
d)
m=-96
5.
What is another word for zeros?
a)
y-intercepts
b)
roots
c)
vertex
d)
axis of symmetry
6.
Solve by taking square roots:
k2 - 6 = 43
k2 - 6 = 43
a)
k = √37
b)
k = 37 or - 37
c)
k = 7, k = -7
d)
no solution
7.
b2 - 4ac would equal: y = 2x2 -x -3
a)
25
b)
-23
c)
-25
d)
0
8.
____________
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
9.
____________
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
10.
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
11.
It is a polynomial equation of degree 2 that can be written in the form ax2 +bx + c= 0, where a, b, and c are real numbers and a = 0.
a)
Linear Equation
b)
Linear Inequality
c)
Quadratic Equation
d)
Quadratic Inequality
12.
Say 'TRUE' or 'FALSE'
A quadratic equation ax2 + bx + c = 0 has equal roots, then b2 - 4ac = 0
A quadratic equation ax2 + bx + c = 0 has equal roots, then b2 - 4ac = 0
a)
TRUE
b)
FALSE
13.
Which of the following is an example of quadratic equations?
a)
x + 9 = 0
b)
x + y =12
c)
x3 + 5x2 - 14 =0
d)
x2 - 2x = 7
14.
Which of the following is in the standard form?
a)
y2 - 7y + 12 = 0
b)
x3 - x2 + 3x -8 = 0
c)
x2 +9x = 34
d)
y2 - 10 = -3y
15.
What is the standard form of quadratic equation?
a)
ax2 + bx + c
b)
ax2 + bx - c
c)
ax2 + bx = c
d)
ax2 + bx = -c
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