#### Black mantis

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Sol: f(x)= x-2/ x^2 + x + 3 = y

x^2 y + xy + 3y = x -2

- Thread starter Black mantis
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Sol: f(x)= x-2/ x^2 + x + 3 = y

x^2 y + xy + 3y = x -2

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You've made a good start. Now you want to find values of y for which your equation has at least one solution for x, thinking of y as a constant.

Does the

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Hi Black mantis. Here's a quick note about terminology. The given function is not quadratic; it's rational. You're finding the range of a rational function.Range of quadratic equation …

PS: If you google keywords like how to find the range of a rational function, you'll see links to many lessons and examples.

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