Finding Roots
(Quadratic Formula)
(Quadratic Formula)
Solve using the quadratic formula:
x2+2x-8=0
x=2 or x=-4
What is the name of the point where the parabola changes direction?
Vertex
In the equation y=2x2+3x-5 , what is the value of a ?
a=2
What is the term for the solutions to a quadratic equation?
Roots, zeros, x-intercepts
In what movie does this main character say, "The limit does not exist!" while in a moderate math competition?
Mean Girls
Solve using the quadratic formula:
2x2-3x-5=0
x=2 or x=-5/2
What is the formula for the axis of symmetry of a parabola in standard form?
x=-b/2a
In the equation y=-x2+4x+6 , what is the value of b ?
b=4
What do we call thee highest or lowest point of a parabola?
Vertex
In The Incredibles, what is the superhero name of the character who is a math whiz and uses her intelligence to solve problems?
Violet Parr
Solve using the quadratic formula:
3x2+6x-9=0
x=1 or x=-3
Identify the y-intercept in the equation:
y=3x2+5x-7
-7
In the equation y=7x2-2x+1 , what is the value of c ?
c=1
What do you call the line that divides the parabola into two equal halves?
Axis of symmetry
In the popular Netflix series Stranger Things, which character uses math to solve supernatural mysteries and is known for their nerdy personality?
Mike Wheeler
Solve using the quadratic formula:
x2-6x+8=0
x=4 or x=2
Given y=2x2+4x+1, what is the vertex?
(-1,-1)
In the equation 4x2+5x-2=0 , what is the value of a , b & c?
a=4
b=5
c=-2
What is the term for a constant term in a quadratic equation?
the y-interceept
I'm an odd number. Take away one letter, and I become even. What number am I?
Seven
(remove the s)
Solve using the quadratic formula:
2x2+5x-3=0
x=1/2 or x=-3
If a parabola opens downwards, what can you say about the sign of the coefficient a?
a is negative
In the equation -3x2+7x+9=0 , what is the value of a , b & c?
a=-3
b=7
c=9
When a quadratic equation is written as y= ax2+bx+c, what do we call this form?
Standard form
What has roots as nobody sees, is taller than trees, up, up it goes, and never comes down?
A Mountain