Answer: The function is decreasing for all real values of x where x < 1.5.
Step-by-step explanation:
The axis of symmetry is ![x=\frac{4-1}{2}=1.5](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B4-1%7D%7B2%7D%3D1.5)
Since the coefficient of
is positive, the graph opens upwards.
So, the function is decreasing for all real values of x where x < 1.5.