Determining the Rule for a Parabola (VCE SSCE Mathematical Methods): Quizzes

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Determining the Rule for a Parabola
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10 questions from this quiz

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Which form is best when you know two x-intercepts and one other point?

Factored form y=a(xe)(xf)y = a(x - e)(x - f)

Which form should you use when the turning point coordinates are known?

Vertex form y=a(xh)2+ky = a(x - h)^2 + k

Which form is used when you have three random points with no clear pattern?

General form y=ax2+bx+cy = ax^2 + bx + c

What does the coefficient aa determine in a parabola equation?

Shape and direction

If a parabola has an x-intercept at 3-3, what is the corresponding factor?

(x+3)(x + 3)

What does a negative value of aa indicate about a parabola?

It opens downward

In the general form y=ax2+bx+cy = ax^2 + bx + c, what does cc represent?

The y-intercept

In vertex form y=a(xh)2+ky = a(x - h)^2 + k, what do (h,k)(h, k) represent?

Turning point coordinates

What does symmetry about the y-axis indicate in general form?

b=0b = 0

A parabola has turning point (5,2)(5, -2) and passes through (6,1)(6, 1). Which form to use?

Vertex form

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