Rectangular form — Precalculus, what it means and where it is taught
The ordinary (x, y) description.
Taught in Precalculus.
Where it is taught
Practise this idea
4 questions in the course bank use Rectangular form, in Polar Coordinates.
Problem 1
Convert (4, 0°) to rectangular form. Give x.
Worked answer
4
x = 4cos 0° = 4
Problem 2
Convert (5, 90°) to rectangular form. Give y.
Worked answer
5
y = 5sin 90° = 5
Problem 3
Convert (6, 60°) to rectangular form. Give x.
Worked answer
3
6cos 60° = 6(0.5) = 3
Problem 4
Convert (8, 30°) to rectangular form. Give y.
Worked answer
4
8sin 30° = 8(0.5) = 4