If you wanted to reflect a line segment with one endpoint (x, y) about the x-axis, which of the following describes how you might go about finding the coordinates for the new point after the reflection

Johnny rode his bike to a friends house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was unable to play. what was his displacement for the total bike ride trip? what could you use as a reference point ? show the steps to solve this problem.