00:01
First let's say we're reviewing the power rule.
00:02
So let's say i have something x to the n.
00:04
The derivative y sub prime says that the power rule i bring down the exponent in front of the x term and subtract 1 from the exponent.
00:14
So this would be my derivative.
00:16
So the derivative of x squared bring down the exponent of 2 times x to the 2 minus 1 power.
00:24
2 minus 1 is just 1.
00:27
But i'm finding the derivative at the point 1 .1.
00:31
I only care about my x value here, right? because i'm just plugging in my x value into this.
00:36
So this is 2 times 1.
00:37
The slope of the line at the point 1 1 1 will be 2, right? because derivative represents the slope at a particular point.
00:46
Okay, what about x to the 1 half? well, power rule bring down the 1 half still times x to the 1 half minus 1...