Describing Parabolas

Which equation would result in the parabola being wider?

• y = 0.5x² + 2

• y = x²

• y = 10x² + 7

• y = - 3x² - 2

What is the correct graph for the equation y = - 0.5x² + 2

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Is the following parabola concave up or concave down?

• Concave down

• Concave up

• Neither

The graph of y = x² + 1 could be?

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What is the vertex of this quadratic equation?

y = 2(x + 2)² + 4

• (-2,4)

• (2,4)

• (4,-2)

• (-4,-2)

Where is the axis of symmetry for this parabola?

• x = −1

• x = 0

• y = 3

• x = −3

What is the vertex?

• (0, - 1)

• (0, 0.5)

• (-1, 0)

• (0.5, 0)

Does the quadratic have a max/min vertex, and does the parabola open up/down?

• max/ opens down

• min/ opens up

• max/ opens up

• min/ opens down

What do we call the graph of a quadratic function?

• parabola

• linear

• cubic

• sinusoidal

What is the maximum/minimum of a parabola called?

• vertex

• point

• top

• bottom