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Quadratic Equations Flashcards | StudBud
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Quadratic Equations
Quadratic Equations
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A #math quiz to teach the basics of #quadratic equations to all students. #Algebra
Flashcards
11 cards
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Questions
11
Answers
1
x
2
+x+1=0 Solve for x
x=1
No solution
x=0
x∈R
2
Which of the following is a quadratic equation?
12-2x(x-1)=0
ax3-bx2-c=0
-x2-x-1=-x2
-2x2-x+12+2x2=0
3
When is the parabola not touching the x-axis
?
When 2a<y
When y≤0
When (-b±√(b2-4ac))/2a>0
When b2-4ac<0
4
What is the equation that is used to solve quadratic equations?
a2+b2=c2
x=(-b±√(b2-4ac))/2a
x2-a2=(-b±√b2-2ab)/4a
a=(b±b2-4ac)/4a
5
Which of the curves represents a quadratic equation?
B
C
D
A
6
What is a quadratic equation?
x4+x3+x2+x-1=0 x≠0
ax2+bx+c=0 a≠0
x2+x-1=0 x≠0
ax4+bx3+cx2+dx+e=0 a≠0
7
Are quadratic equations easy?
Never
When x∈R
sometimes
Always
8
Which of the equations is the graph's parabola's equation?
x2-x+3=0
y=(x-3)2
y=-3x2
y=x2+3
9
x
2
-x+1>0 Solve for x
x=√-2
x∈R
No solution
x=2/0
10
Which of the following is not a quadratic equation?
x2b-bx2-x+1=0
(a-b)x2-2x+bx-23-c=0
x2(12-5b)+9x(b-c)=0
(a-b)x2-(a+b)x-(-a+b)=0
11
x
2
-16=0 Solve for x
x∈R, x≠±16
x=±4
x=±16
No solution
