Question

The equation of a curve is given by y = x-1/ 3 + x^2. Given that Dy/dx = -(x-3) (x+1) / ( 3 + x^2) ^2. Determine the range of values of x for which y is a decreasing function.

Answer 1

u need to find when the derivative is less than zero

Answer 2

x > 3 or x > 1

Answer 3

no x < 1 .

Answer 4

i got
x<1
x>3

Answer 5

thank you so much .