Question

medal????HELP!!!!!!!!!!!!

Answer 1

@TheSmartOne @Abhisar @jim_thompson5910

Answer 2

axis of symmetry is a vertical line where is the parabola is folded along this line, the two sides will match up.
Another way to think of the axis of symmetry is as a vertical line directly in the middle of the parabola which shows both sides as a "reflection" of each other.

Answer 3

therefore, http://prntscr.com/6ofpqy