Under fire!

Author:Joshua Price

A cannon fires from the point (0,0) at a ship that is at the point (5,0). The cannon ball moves in the shape of the parabola y = −x^2 + 4. Find the x-intercepts of this parabola to determine if the ship will be hit by the cannon ball.

New Resources

Sine in Cartesian and Polar Coordinates
Graphing a Circle in Polar Coordinates
Limaçons
Graph Segment of f(x) = x in Polar Coordinates
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Bertrand Duopoly
Normal Circular Probabilities
Pythagoras's Theorem - proof without words
Fermat0.ggb
polgon

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Logic
Trapezoid
Equations
Addition
Mathematics