Graph y<=-x^2+x+6

$y \leq - x^{2} + x + 6$

The equation is not linear, so a constant slope does not exist.

Not Linear

Graph a solid line, then shade the area below the boundary line since $y$ is less than $- x^{2} + x + 6$ .

$y \leq - x^{2} + x + 6$