Parabolas

Front

What is the standard form of the equation of a parabola with focus (0, 4) and directrix y = -4?

Back

y = (1/16)x²

Front

True or False? When the x-part is squared, the parabola opens up or down.

Back

True

Front

What direction does a parabola point if its equation is in the form y = ax²?

Back

Up or Down

Front

What is the equation of a parabola that opens to the left?

Back

y² = -16x

Front

Which direction does a parabola open if its equation is y = -ax²?

Back

Down

Front

What is the vertex of the parabola given by the equation y = (1/4)x²?

Back

(0, 0)

Front

What is the focus of the parabola given by the equation y = (1/16)x²?

Back

(0, 4)

Front

What is the directrix of the parabola y = (1/16)x²?

Back

y = -4

Front

What is the general shape of a parabola?

Back

A U-shaped curve that can open up, down, left, or right.

Front

What is the axis of symmetry for the parabola y = (1/4)x²?

Back

x = 0