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2 cards from this section. Quick, good the night before a test.
Identify the focus of the parabola with equation y^2 = 4px.
Think about the standard form of parabola.
What is the directrix of the parabola y^2 = 4px?
Recall how directrix is defined in relation to focus.
What is the focus of a parabola?
Remember it’s a key part of how a parabola is formed.
The directrix of a parabola is:
It’s used alongside the focus definition.
Prove that any point on the parabola is equidistant from the focus and directrix.
Consider the coordinates of the points involved in your calculations.
Design a parabolic satellite dish focusing on radio waves. Explain the design basics.
Focus on the dimensions that align with the properties of a parabola for signal reception.
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