Question

$f\left(x\right)=x^2+5x+6$ defined on f: R $\to$ R is a many one function.

• A. True
• B. False

Answer 1

The correct option is A

True

On drawing the graph of given function we’ll end up making a parabola shape(all quadratic functions are upward or downward facing parabolas). And if we draw lines parallel to X- axis to such parabolas we’ll find that graph will be cut more than once by such a line. So the function will be a many one function.

Note : All the quadratic equations defined on all the real values of x will always be a many one function.