Learn to determine three different representations of a polar point

The video tutorial explains how to graph points in polar coordinates, focusing on understanding the radius and angle. It covers finding coterminal angles and negative angles, and demonstrates how to represent points in different ways. The tutorial also explains how negation affects point calculations, ensuring students understand the concept of equivalent points in polar form.

What does the 'r' in polar coordinates represent?

• The y-coordinate

• The angle from the x-axis

• The distance from the origin

• The x-coordinate

How can you find a negative angle that is coterminal with π/6?

• By adding 2π to π/6

• By dividing π/6 by 2

• By subtracting π/6 from 2π

• By multiplying π/6 by -1

What is the coterminal angle of π/6 in negative form?

• -5π/6

• -11π/6

• -π/6

• -7π/6

What happens to the Cartesian coordinates when the radius in polar form is negated?

• The coordinates become negative

• The coordinates are inverted

• The coordinates remain the same

• The coordinates are reflected over the origin

Which trigonometric function is used to find the x-coordinate from polar coordinates?

• Sine

• Cosine

• Tangent

• Cotangent