The solutions to a quadratic equation are -1 and 7. What is the equation of its axis of symmetry?

Answer 1

A little technicality :
A quadratic equation does not have an axis of symmetry, a quadratic function does.

the corresponding quadratic function would be
f(x) = (x+1)(x-7), which would have zeros of -1 and 7

the axis of symmetry would be half-way between these two values, or
x = 4

Answer 2

please look over is it suppose to be 3 if i do -1+7 =6 then divied it by 2 i get 3

Answer 3

You are right, 4 units over from -1 is 3
sorry about the silly arithmetic error.
midpoint between (-1,) and (7,0) is (3,0)

x = 3