Asked by Raj
Find the coordinates of the stationary points on the curve y= x+4/x determine the nature of the turning points.Find also the set of values of x for which y increases as as x increases.
Answers
Answered by
Reiny
dy/dx = 1 - 4/x^2 = 0 for turning points
Solve for x, then find the matching y to find the turning points.
Decide if those points are max or mins using the 2nd derivative test.
y will increase if dy/dx is positive
y will decrease if dy/dx is negative
Solve for x, then find the matching y to find the turning points.
Decide if those points are max or mins using the 2nd derivative test.
y will increase if dy/dx is positive
y will decrease if dy/dx is negative
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