IXL - Find properties of parabolas from equations in general form (Geometry practice)

What is the axis of symmetry of the parabola

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Learn with an example

question

What is the vertex of the parabola

key idea

The vertex form of a parabola that opens up or down is

(

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)

The vertex is

(

)

the parabola opens up. If

the parabola opens down.

The vertex form of a parabola that opens right or left is

(

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)

The vertex is

(

)

the parabola opens right. If

the parabola opens left.

solution

To find the vertex, write the equation in vertex form.

Write the equation in vertex form.

The non-squared variable is

Write the equation so that its term is isolated on the left. It is good practice to write the terms on the right in descending order.

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The equation is now in vertex form. Identify the vertex.

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(

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)

Its vertex is

(

)

Looking for more? Try these:

Lesson: Quadratic functions

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Not feeling ready yet? These can help:

Z.7Convert equations of parabolas from general to vertex form

Find properties of parabolas from equations in vertex form

Lesson: Quadratic functions

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