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