Question

PLEASE HELP WILL GIVE MEDAL
Graph each pair of parametric equations on a scale from -10 to 10.
x = 3 sin3t
y = 3 cos3t

Answer 1

Make t equal a value ftom -10 to 10 and plug into equation to find each x, y coordinate

Answer 2

isnt there another way to do it?
im not trying to be annoying i just dont know

Answer 3

yes there is

Answer 4

x^2 + y^2
= (3 cos t ) ^2 + (3sin t)^2
= 9cos^2 t + 9 sin^2 t
= 9 ( cos^2 t + sin^2 t )
= 9 * 1

so we have a cartesian equation of a circle
x^2 + y^2 = 9

it is centered at (0,0) and has radius 3