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Quadratics
Answer the following questions
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Last updated: June 16, 2020
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| First submitted | June 16, 2020 |
| Times taken | 62 |
| Average score | 50.0% | Report this quiz | Report |
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1. What does a negative discriminate mean?
The parabola will curve down
The parabola does not have x-intercepts
The y-intercept is a negetvie
The parabola is a straight line
2. What methods can you use to solve and or factorise quadratic equations?
All of the above
Quadratic Formula
Completing the square
PSN
3. What causes the parabola to curve down?
x-intercepts are too close
There are too many x-intercepts
A positive constant in the first term (standard from), e.g x to the highest index
A negative constant in the first term (standard from), e.g x to the highest index
4. What formula is used to find the horizontal axis of symmetry?
Gradient Formula
Cosine Rule
Area Formula
Average Formula
5. How is the vertical axis of symmetry found?
Guesswork
Simultaneous equations
Substitution of the horizontal axis of symmetry in to the quadratic equation
It is the c term in a standard equation, ax^2+bx+c=0
6. What is the most simple way of factorising x^2-26x+169?
PSN method
Quadratic formula
All are equal in steps and complexity
Completing the square
7. How is the y-intercept found?
Making x value to zero
Making y value to zero
Find the axis of symmetry and half it
8. What is a name for this expression
x^5-4x^4-8x^3+6x^2+12w-7?
Sixth order polynomial
Monic expression
Fifth order polynomial
Quadratic equation
9. How do you find the intersection point of two parabolas?
Finding the average of the two axes
Combining the equations
Simultaneous Equations and Combining the equations
Simultaneous Equations
10. What is the formula completing the square is based off?
squareroot of b^2-4ac
1/2ab
a+b/2c
(a+b)^2=a^2+2ab+b^2
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1 Comments
cammyandkate
+1
Level 56
Oct 23, 2022
Nice Quiz - Stan
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