0:00
All right.
00:01
So the way i'm reading this is that we are in first quadrant.
00:07
So we're somewhere over here.
00:08
And they tell you that the x coordinate of this ordered pair is 9 tenths comma y.
00:15
So what they're pretty much saying is if you go along the x axis here, but we don't know what this value is.
00:22
They go ahead and use theta in the problem.
00:26
Data goes right here.
00:27
And the hypotenuse would be one.
00:29
So it's basically, do you know the pythagorean theorem? and do you know how to set up that right triangle? well, 1 squared equals 1, so i would strategically change that 1 to be 100 over 100, because if you look at the x value, it would be 81, 9 squared, over 100...