Question

Solving graphically y=x²-1​

Answer 1

Answer:

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Answer 2

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Algebra Examples

Popular Problems Algebra Graph y=x^2-1

y

=

x

2

−

1

Find the properties of the given parabola.

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Direction: Opens Up

Vertex:

(

0

,

−

1

)

Focus:

(

0

,

−

3

4

)

Axis of Symmetry:

x

=

0

Directrix:

y

=

−

5

4

Select a few

x

values, and plug them into the equation to find the corresponding

y

values. The

x

values should be selected around the vertex.x

y

−

2

3

−

1

0

0

−

1

1

0

2

3

Graph the parabola using its properties and the selected points.

Direction: Opens Up

Vertex:

(

0

,

−

1

)

Focus:

(

0

,

−

3

4

)

Axis of Symmetry:

x

=

0

Directrix:

y

=

−

5

4

x

y

−

2

3

−

1

0

0

−

1

1

0

2

3