For the circle x + y = 25, a. find y when x = 4. b....

 

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For the circle x² + y² = 25, a. find y when x = 4. b. find the slope of the tangent line where x = 4. c. find the points at which = 0. d. If the radius starts increasing at a constant rate of 2 cm/sec, how fast is the area increasing when r = 6 cm? For the circle x² + y² = 25, a. find y when x = 4. b. find the slope of the tangent line where x = 4. c. find the points at which = 0. d. If the radius starts increasing at a constant rate of 2 cm/sec, how fast is the area increasing when r = 6 cm?

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aSubstitute x 4 to the equation then solve for y x y 25 4 y 25 ... View the full answer