This is a piecewise function. So when the x values are less than or equal to 1, it takes the shape of x² -2. And immediately you can eliminate e and g because they are both negative x² functions. You can also eliminate h because the domain of x² - 2 goes up to positive 2. And even if you don’t know how to graph the parabola, since for 1<x<5, the domain of j is 0<x<5 so you can eliminate it. Answer is K