Answer:
see explanation
Explanation:
(a)
the x- coordinate of every point on the orange vertical line is 9
the diagram gives 2 points ( 9, 7 ) and (9, - 2 )
Sll other points on the line will be of the form (9, y )
(b)
the equation of a vertical line is
x = c ( c is the value of the x- coordinates the line passes through )
As established in part (a) the x- coordinates of all points on the line are 9, so
x = 9 ← equation of vertical line