Robertjreyes [10:45 PM]: hwo do u find the tangent line

Mattimeo9 [10:45 PM]: i have a way i think

Mattimeo9 [10:45 PM]: you have the x point

Mattimeo9 [10:45 PM]: plug that in the equation to get y

Mattimeo9 [10:46 PM]: take the derivative of the equation and then plug in x to get the slope

Mattimeo9 [10:46 PM]: then you have a point and a slope and you can find the equation of a tangent line

Robertjreyes [10:47 PM]: ehh?

Mattimeo9 [10:47 PM]: that should work

Robertjreyes [10:48 PM]: i'm lost

Mattimeo9 [10:48 PM]: you want the equation for a tangent line right

Robertjreyes [10:49 PM]: yeah

Robertjreyes [10:50 PM]: like lets try 1a

Robertjreyes [10:50 PM]: the equation is x^2-3

Mattimeo9 [10:50 PM]: ok

Robertjreyes [10:50 PM]: and x0 = 2.2

Mattimeo9 [10:50 PM]: yeah

Robertjreyes [10:50 PM]: how do i find the tangent line

Mattimeo9 [10:52 PM]: well ok

Mattimeo9 [10:52 PM]: the y point is 1.84 if you plug in the x value

Robertjreyes [10:53 PM]: yeah ok

Mattimeo9 [10:53 PM]: the derivative of the eqation is 2x

Mattimeo9 [10:53 PM]: so the slope would be 4.4

Robertjreyes [10:53 PM]: yeah i got that

Mattimeo9 [10:53 PM]: ok

Mattimeo9 [10:53 PM]: so use point slope form or whatever

Mattimeo9 [10:54 PM]: y = 4.4(x - 2.2) + 1.84

Robertjreyes [10:54 PM]: and i forgot what it was

Robertjreyes [10:54 PM]: k

Robertjreyes [10:54 PM]: ooooooh ok

Robertjreyes [10:54 PM]: thanks

Mattimeo9 [10:54 PM]: so y = 4.4x - 7.84

Mattimeo9 [10:54 PM]: sure