Problema Solution
the x intercepts of a parabola are at (-5,0) and (9,0). what is the equation of the axis of symmetry?
Answer provided by our tutors
the vertical line that passes trough the middle of (-5,0) and (9,0) is the axis of symmetry
the middle of (-5,0) and (9,0) has coordinates ((9 - (-5))/2, 0) = (14/2), 0) = (7, 0)
the vertical line trough (7, 0) has the equation x = 7
x = 7 s the equation of the axis of symmetry.