those are parametric equations - x(t) and y(t).
Go to mode, scroll down until you see "Func" selected. Select "Par" instead.
Now you can graph the equations x(t) and y(t) together.
Graph and identify the kind of conic the graph represents:
a. x(t)=3 cos t
y(t)=3 sin t
on [0,2pi]
b. x(t) =2 cos t
y(t) =5 sin t
on [1,5]
I tried graphing A on my TI-89 calculator as y(1)=3 cos x and y(2)=3 sin x. All I see are two wave-like graphs crossing each other; I don't see a conic. Did I do something wrong?
Thanks very much!
1 answer