Abase of a parallelogram is on the x-axis and the origin is located at the left endpoint of that base. three consecutive vertices are (h, j), (0, 0), and (k, 0), where h > 0. what is the x-coordinate of the fourth vertex?

The x-coordinate will be h+k.

The point (k, 0) is k units horizontally away from 0.  In order to make both sides of the figure parallel, the length of the top base will need to be the same as the length of the bottom base; this means that the fourth vertex will need to be k units away from h.

Answerthe simplified expression isexplanationthe given expression is,let us deal with the bracket first.the two negatives in the parenthesis will become positive.the expression now becomes,we now expand the parenthesis to get,we group like terms to obtain,this simplifies to,