00:01
So i see that you need help with this problem and it says, find the equation of the line l where l is perpendicular to y equals 3 half, 3 over 2x, and passes through point 2, 3 comma 3.
00:18
Well, in order to be perpendicular, your slopes have to equal negative 1 when multiplied.
00:25
So 3 over 2 times something equals negative 1.
00:32
And the only way to do that is obviously to get a negative.
00:36
I have to be multiplying a positive times a negative.
00:39
So this fraction is going to be negative.
00:40
And then i have to do the reciprocal of 3 over 2, which is 2 over 3.
00:45
So right now my slope is y equals negative 2 over 3 x.
00:51
And now i have to pass through point 2 comma 3.
00:56
So x and y.
00:58
So y is 3 and that equals negative 2 over 3 times 2, which is x plus b...