Question

Which of the following is the equation of the axis of symmetry of the quadratic equation y = 2x2 + 24x + 62?
Answer
A. x = 6
B. x = –10
C. x = –6
D. x = 10

Answer 1

= -24 / 2(2) = -6

Answer 2

C

Answer 3

y=2(x^2+12x+31)
=2((x+6)^2-5)
so this will symmetric at x=-6