Question 1070322
(a) find an equation for the line tangent to the circle x^2+ y^2=25 at the point (3,-4).
The slope of the tangent line at any point on a circle is -x/y
--> m = 3/4
y + 4 = (3/4)*(x - 3)
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(b) At what other point on the circle will a tangent line be parallel to the tangent line in part (a)?
At the other end of the diameter (-3,4)