equation of tangent

find the equation for the tangent to y = x^4 at the point where x=2
first substitute x=2 into the given equation to find y to get the point (x1,y1)
at which the tangent is required.
find dy/dx and evaluate it at (x1,y1) to get the slope,m of the tangent
then use (y-y1) = m(x-x1) to get the equation of the tangent

-----------------------------------------------------------
please leave your comments below
------------------------------------------------------------
index of math problems


disclaimer:
There is no guarantee about the data/information on this site. You use the data/information at your own risk. You use the advertisements displayed on this page at your own risk.We are not responsible for the content of external internet sites. Some of the links may not work

to find the equation of a circle with center (2,-6); tangent to the y-axis

Find the equation of the circle with center(2,-6) and tangential to the y-axis.

Since the y-axis is a tangent to the circle,
radius of the circle,r =|x-coordinate of the centre| = 2

equation of the circle is

(x-2)² +(y+6)² = 2²


formulae on circles



disclaimer:
There is no guarantee about the data/information on this site. You use the data/information at your own risk. You use the advertisements displayed on this page at your own risk.