Which of the following describes the end behavior of y=-x^2+bx+c as x approaches either positive or negative infinity?

Y=ax^2+bx+c

a is leading coefient

if it is negative, then the parabola opens down

if it is positive, then the parabola opens up

y=-x^2+x+c

so negative, parabola opens down

as x approaches negative or positive inifnity, y approaches negative infinity