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Duplicate of Quadratic Equations Flashcards | StudBud

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Duplicate of Quadratic Equations

7 terms·StudBud Administration·28 plays

A #math quiz to teach the basics of #quadratic equations to all students. #Algebra

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Questions 7

Answers

1
x²-16=0 Solve for x
x∈R
No solution
x=16
x=±4
2
What is the equation that is used to solve quadratic equations?
x=(-b±√(b2-4ac))/2a
x2-a2=(-b±√b2-2ab)/4a
a2+b2=c2
a=(b±b2-4ac)/4a
3
What is a quadratic equation?
ax2+bx+c=0 a≠0
x4+x3+x2+x-1=0 x≠0
ax4+bx3+cx2+dx+e=0 a≠0
x2+x-1=0 x≠0
4
Which of the following is a quadratic equation?
-2x2-x+12+2x2=0
ax3-bx2-c=0
12-2x(x-1)=0
-x2-x-1=-x2
5
Which of the lines represents a quadratic equation?
B
D
A
C
6
Which of the equations is the graph's parabola's equation?
y=-3x2
y=x2+3
x2-x+3=0
y=(x-3)2
7
Are quadratic equations easy?
sometimes
Yes
No
When x∈R