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

Isosceles Right Triangle
Perpendicular Lines: Quick Exploration
Linear Equation Graphs: Thin Slice
Slope Illustrator (2)
Segment Addition Postulate (Mild Questions)

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exteriorangles
AB + CD
Part 2
การสร้ารูปคลี่พีระมิด
พื้นผิวบนปริภูมิ3มิติ

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Mathematics
Random Experiments
Parametric Curves
Arithmetic
Prism