From which graph can you best find the solution to the equation (2/x) - (5/x^2)=-4

Question

From which graph can you best  find the solution to the equation (2/x) - (5/x^2)=-4

anonymous · Answer

attachment

anonymous · Answer

y = 2/x -5/x^2 + 4 . Its graph must show these conditions: 
When y = 0, y = (4x^2 + x - 5)/x^2 = 0 --> x1 = 1 and x2 = -5/4
When x = 0 --> y = +infinity 
The last graph satisfies these conditions.

anonymous · Answer

shouldn't the graph go down not up

anonymous · Answer

The correct answer is actually the second graph you posted. The graph should go up based on how you've written the problem.

anonymous · Answer

ok thanks

anonymous · Answer

Not a problem! :) And thank you!

anonymous · Answer

Sorry, I missed a condition: limit y = (4x^2 + x - 5)/x^2,  when x = + or - infinity is 4. So the right answer is Fig 1.