Posted by **Sarah** on Tuesday, August 20, 2013 at 11:44pm.

Find an equation of the tangent line to the circle x^2+y^2=25 at the point (4,-3)

- Math -
**Steve**, Wednesday, August 21, 2013 at 5:53am
at (x,y) the slope is -y/x

So, at (4,-3) the slope is 3/4.

- Math -
**Steve**, Wednesday, August 21, 2013 at 5:54am
Oops. The slope is -x/y.

SO, it's 4/3

## Answer this Question

## Related Questions

- Math (Pre Cal) - Hi, I am studying for a precalculus quiz and I do not ...
- Alg2 - The tangent to a circle may be defined as the line that intersects the ...
- mathematics - The circle x2-2x+y2-4y-4=0 lies on the cartesian plane,question 2....
- mathematics - The circle x2-2x+y2-4y-4=0 lies on the cartesian plane,question 2....
- mathematics - The circle x2-2x+y2-4y-4=0 lies on the cartesian plane,question 2....
- calc - standard equation of circle concentric with X^2+Y^2-2X-8Y+1=0 and tangent...
- Math - I have a series of questions that I did. They lead up to the last ...
- Math - Answer check please: Consider the circle (x-3)^2 + (y+1)^2 = 169. The ...
- math - can u help this the qustion is : A circle passes through the points (1,4...
- mathematics - The circle x2-2x+y2-4y-4=0 lies on the cartesian plane,question 2....

More Related Questions