Respuesta :
Formula for finding the axis of symmetry: x = -b/2a
x^2 - 2x - 15
a = 1; b = -2 (plug these into the formula above)
-(-2)/2(1) = 2/2 = 1
x^2 - 2x - 15
a = 1; b = -2 (plug these into the formula above)
-(-2)/2(1) = 2/2 = 1