00:01
Right, so in this problem, we are giving the ellipse with the equation of 16 x squared plus 9 y squared equals to 144.
00:13
So i'm going to divide everything by 144.
00:16
I'm going to get x squared divided by 144, and i'm going to divide this by 16th like that, plus y squared divided by 144, divided by 9th, and this is equal to 1.
00:30
So i can write this as x squared divided by 9th plus y squared divided by 16th, and all of these will equal to 1.
00:39
So we are trying to imagine what this looks like.
00:42
So here we have the y -axis and the x -axis, and so x goes from plus minus 9th.
00:48
So something like this, negative 9, positive 9, and y goes from positive to negative.
00:55
Sorry, not 9th.
00:56
I should correct myself there from negative 3.
01:00
To positive 3, so that's better.
01:03
And x will go from the square root of 16 is 4, so plus and minus 4...