Parabolas

Which graph is a parabola?

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• 
• 
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What is the y-intercept of the parabola y = 5x² - 3

• 5

• 3

• - 3

• -5

y = ax² + bx + c is

• a quadratic equation in vertex form
• a linear equation in vertex form.
• a quadratic equation in standard form.
• a linear equation in standard form.

Is this a max or min?

• max
• min
• cannot be determined

What is the Axis of symmetry?

• Y=3
• y=-3
• x= 3
• x=-3

Find the axis of symmetry

• x = 2
• x = 0
• x = -1
• x = -2

Which point is an example of a y-intercept?

• (3,4)
• (-2,8)
• (0,4)
• (5,0)

What are the green dots called?

• axis of symmetry
• vertex
• parabola
• roots or x-intercepts

The parabola y = x² - 2x + 4 will have a vertex of

• (-1, 2)

• (1, 2)

• (-1, 3)

• (1, 3)

The parabola y = - 2x² - 4x + 1 will have an axis of symmetry of

• x = - 1

• x = 1

• x = 4

• x = - 4