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WorksheetsQuadratic Equations
Total questions: 100
Worksheet time: 1hrs 15mins
Every Quadratic equation has exactly one root
A quadratic equation ax2 + bx + c = 0 has equal roots, then b2 - 4ac = 0
Solve the equation by factoring.
x = {3,8}
x = {-3,8}
x = {3,-8}
x = {-3,-8}
How many solutions can a quadratic have?
1 solution
3 solutions
0 solutions
2 solutions
Solve by factoring
-4, 2
-2, 4
-16
-4
Solve for r:
-3, 4
3, 4
-4, -3
-3
Solve the following quadratic equation: 4x2−9=0
x=23 & x=−23
x=32 & x=3−2
x=49
x=94
If discriminant of a quadratic equation is negative, then roots of the equation are __________.
Distinct Roots
Equal roots
Unequal roots
none
Find the nature of roots in the quadratic equation 3x² - 9x+5=0
Real and Equal
Real and distinct
Unreal and distinct
None
What is the quadratic formula?
a, b, and c for
the quadratic equation:
4x2 – 8x = 3
What are the roots of the function?
x = 4, -1
(-4, 1)
x = -4, 1
(4, 0) (-1, 0)
x2 + 4x + 3 = 0
Solve using the Quadratic Formula:
2x2 − x − 3 = 0
x=−23, 1
x=23, −1
x=−23, −1
x=23, 1
Solve using any form of factoring or Quadratic Formula
x2 + 6x + 9 = 0
x = −3, 3
x = −3
x = 3
No Solution
Solve for the values of x:
(x + 2)(x - 3) = 0
{ 2, 3 }
{ -2, -3 }
{ 2, 3 }
{ -2, 3 }
x2 + 6x - 13 = 3
Solve by factoring:
n² - 2n = 0
n = 2 and 0
n = -2 and 0
n = 2
n = 0
Solve the perfect square trinomial
x2+8x+16=0
x2+42
(x−4)(x+4)
(x−4)2
(x+4)2
Solve using the Square Root Method
x2=36
±6
±18
±12
6
Which word is not a term for where the graph crosses the x-axis?
Root
Zero
Solution
Y-Intercept
What are the roots if
a=1, b= -12, and c=36
x= {6, 0}
x= {-6, 6}
x= {-6, 0}
x= {6}
What is the vertex of the equation
f(x)=6x2+13x−5
(plug it into the calculator)
(−1.08,−12)
(−12, −1.08)
(−2.5, 0.33)
(0.33, −2.5)
What are the factors of
x2−16
(x−4)2
(x+4)2
(x−4)(x+4)
(x)2−(4)2
The vertex of a quadratic function or graph is
The highest point of the graph
The lowest point of the graph
Where the axis of symmetry passes through
Where the graph crosses the x-axis
How many roots can a quadratic function have?
(select all that are true)
0
1
2
Infinite
What is the discriminate of the Quadratic Formula?
2a−b
b2−4ac
b2−4ac
2a−b±b2−4ac
What is the vertex of the above function?
(-2,1)
(-3,0)
(-1,0)
(0,-1)
What are the solutions to the given function?
x={−3,−1}
x={1,3}
x={−1,0}
What is the axis of symmetry for this graph?
x=−8
y=−8
y=−1
What are the zeros for this graph?
x={−3,1}
x={−3,0}
x={−1,−8}
x={−6,−3}
Who is your favorite teacher?
Mrs. Washington
Mrs. Elizondo
Coach Redding
Mrs. Perez
Coach Garcia
Solve by taking square roots:
5m2 + 1 = 6
m = 1
m = 1 or -1
m = √7
m = 7/5 m = -7/5
4m2 - 100 = 0
Solve by taking square roots.
x² +12 = 5
x = ± 49
No Real Solutions
x = ± √7
x = ± 5/12
x2 = 121
2(x - 4)2 = 200
When solving a quadratic equation, when do you use the plus or minus (±) symbol?
After taking the square root of both sides
After adding the square to both sides
After taking half of b
After setting the equation equal to zero
4m2 - 100 = 0
Solve
x2 + 2x - 20 = 4
x = -6, x = 4
x = 6, x = -4
x = 12, x = -2
x = 8, x = -3
Solve.
(2x - 4)2 = 16
x = 4
x = 10
x = -2
x = 0, 4
What is the formula above primarily used for?
Finding the axis of symmetry from standard form
Finding the vertex from standard form
Finding the vertex from vertex form
Finding the y intercept from standard form
Solve for x by taking square roots.
6x2 - 9 = 87
x = 4, -4
x = 4
x = 16
x = 16, -16
a, b, and c for
the quadratic equation:
4x2 – 8x = 3
Tammy solved the equation x2−x−12=0
Select the factors of x2−x−12
(x+3)(x+4)
(x-3)(x-4)
(x+6)(x-2)
(x-6)(x+2)
(x+3)(x-4)
f(x) = -x2 - 4x + 12
Which of the following is the Factored Form of a quadratic function?
f(x) = mx + b
f(x) = ax2 + bx + c
f(x) = a(x - m)(x - n)
f(x) = a(x - h)2 + k
What are the x-intercepts of the parabola?
y = -3(x + 5)(x - 9)
(-5, 0) and (9, 0)
(5,0) and (-9, 0)
(5, 0) and (9, 0)
(-3, 0) and (5, 0)and (-9, 0)
What are the x-intercepts of the parabola?
y = ¼(x + 2)(x - 6)
(-2, 0) and (6, 0)
(2, 0) and (-6, 0)
(-2, 6)
(¼, 0) and (-2, 0) and (6, 0)
What are the x-intercepts of the parabola?
y = x(x - 4)
(0, 0) and (4, 0)
(1, 0) and (4, 0)
(0, 4)
(-4, 0) and (0, 0)
In f(x) = a(x - p)(x - q), what does "a" tell us?
The slope
If the Parabola opens up or down
x coordinate of the x - intercept
y coordinate of the y - intercept
Solve 2x² - 7x + 6 = 0 by factoring
x = -3/2 and x = -2
x = -3 and x = -2
x = 3 and x = 2
x = 3/2 and x = 2
a, b, and c for
the quadratic equation:
4x2 – 8x = 3
Solve Using the method of your choice.
x2 + 4x - 40 = -8
-10 & -4
-4 & 10
-8 & 4
8 & -4
5x2 - 35x + 60 = 0
Solve using Zero-Product Property.
(2x - 2)(5x + 5) = 0
x = -1
x = -1 or x = 1
x = 1
x = -2 or x = 5
The solution, root, x-intercept, and zero of a problem are all the same thing.
