Question

Which of the following is the equation of the axis of symmetry of the quadratic equation y = 2x2 + 24x + 62?

answers please

Answer 1

This one is in standard form. To find the vertex we can use

-b/2a = -24/4 = -6

The axis of symmetry is given by x= -6

Answer 2

First step is to write it in this form:

y = a(x+b)^2 + c

where x=-b is the axis of symmetry.

To obtain that form, factor and use completing of the square

Answer 3

^Or that

Answer 4

thanks

Answer 5

or you can find the two x-intercepts and then find the midpoint of the two