How do you find the x intercepts for #y=16+5x+(3/x)#?
1 Answer
Jun 15, 2016
The x-intercepts are the points on the curve where
Explanation:
Multiply through by
And now we have a quadratic equation, and we know how to solve those. There are several methods, including factorisation, but my favourite is the quadratic formula.
Rearranging:
The quadratic formula applies to a quadratic equation in the form
In this case,