To represent a horizontal line going through a point on the graph, we denote it with the variable y, as this means the graph would intersect the y axis horizontally and extend in both the left and right directions.
The solution would be the equation, y equaling the y coordinate of the point which is 14. Y = 14.
the question states if necessary, round the nearest tenth and by using the pythagoras theorem the answer should be 10 since its 9.21 and its nearest 10th is 10? im not quite sure though
