00:01
Hello, welcome to this lesson.
00:02
In this lesson we find all the points on the curve y equals to 1 on x where the tangent line is perpendicular to the line y equals to 4x minus 3.
00:14
So what we do is that we would find the slope of both line and curve and after that we multiply their slopes.
00:25
That should give us negative 1 because the tangent line to the curve is perpendicular to the line.
00:33
So we find the slopes.
00:37
So we have m1 which is the slope of the curve.
00:43
So this is negative 1 on x and now we have for the line y equals to 4x minus 3.
00:53
We have m2 which is the slope of the curve.
00:56
Now that is equal to 4.
00:59
Divide the x which is equal to 4.
01:03
So when we multiply m1 with m2 we should get negative 1 because the tangent line to the curve is also perpendicular to the line...