The coordinates of the point that is a reflection of y(-4-2) across the x-axis are ( ?

Assuming your point is Y(-4, -2), its reflection across y=0 simply changes the sign of the y-coordinate.

The point after reflection is Y'(-4, 2).

the rocket cannot penetrate the ground, in a contextual sense, therefore the roots of this equation should be the domain of this function. i'll let you find the roots of this quadratic equation (hint: use the quadratic formula:  

1- c

2-a

step-by-step explanation:

mark brainliest!