The solutions of the equation 2x + 2/x = 7 are the x-coordinates of the points of intersection of the graph of y = x + 2/x and a straight line L
Find the equation of L.
First find x in the first equation
So this particular value of x lies on the graph of the equation and is also a point on the line .
Can you take it from here?
I'll give you a hint.
Plug the values and into the equation . They are two points on L.