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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 | 38 |
| Average score | 60.0% | Report this quiz | Report |
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1.
What does a negative discriminate mean?
The parabola is a straight line
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The parabola does not have x-intercepts
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The y-intercept is a negetvie
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The parabola will curve down
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2.
What methods can you use to solve and or factorise quadratic equations?
PSN
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Completing the square
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All of the above
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Quadratic Formula
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3.
What causes the parabola to curve down?
A positive constant in the first term (standard from), e.g x to the highest index
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A negative constant in the first term (standard from), e.g x to the highest index
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There are too many x-intercepts
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x-intercepts are too close
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4.
What formula is used to find the horizontal axis of symmetry?
Average Formula
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Gradient Formula
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Cosine Rule
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Area Formula
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5.
How is the vertical axis of symmetry found?
Guesswork
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Substitution of the horizontal axis of symmetry in to the quadratic equation
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It is the c term in a standard equation, ax^2+bx+c=0
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Simultaneous equations
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6.
What is the most simple way of factorising x^2-26x+169?
Completing the square
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All are equal in steps and complexity
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PSN method
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Quadratic formula
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7.
How is the y-intercept found?
Making x value to zero
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Find the axis of symmetry and half it
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Making y value to zero
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8.
What is a name for this expression
x^5-4x^4-8x^3+6x^2+12w-7?
Quadratic equation
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Fifth order polynomial
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Monic expression
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Sixth order polynomial
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9.
How do you find the intersection point of two parabolas?
Finding the average of the two axes
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Simultaneous Equations and Combining the equations
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Combining the equations
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Simultaneous Equations
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10.
What is the formula completing the square is based off?
1/2ab
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a+b/2c
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(a+b)^2=a^2+2ab+b^2
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squareroot of b^2-4ac
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1 Comments
jokemaster1997
+1
Level 51
Oct 23, 2022
Nice Quiz - Stan
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