What are the coordinates of point b in the diagram?

When we analyze this diagram in xy coordinate system we can conclude that the line AB is intercepting x-axis at point (2.5, 0 ) and that is the midpoint of the line AB. We will use formulas for the middle point of the line:When we solve the equation: x2=4. y2=-5
 The coordinates of point B are (4, -5).

   

Idon’t know what the answer is i wish i could