SOLUTION: Find the equation of the line tangent to the circle x2 + y2 = 25 at point (3,4). Use the general equation of the line for your final answer.
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-> SOLUTION: Find the equation of the line tangent to the circle x2 + y2 = 25 at point (3,4). Use the general equation of the line for your final answer.
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Question 1106043: Find the equation of the line tangent to the circle x2 + y2 = 25 at point (3,4). Use the general equation of the line for your final answer. Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! implicit differentiation relative to x
2x+2y dy/dx=0
2y dy/dx=-2x
dy/dx=-x/y
The slope of the line is -3/4
the point is (3, 4)
y-y1=m(x-x1), m slope (x1, y1) point
y-4=(-3/4)(x-3)
y=-(3x/4)+(25/4)
