Question

Which of the following is the equation of the axis of symmetry of the quadratic equation y = 2(x – 4)2 + 7?
Answers: A. x=7
B. x=-4
C. x=4
D. x=-7

Answer 1

did you know that the axis of symmetry in a parabola goes through the vertex? do you know where the vertex of this parabola is?

Answer 2

written in standard form, the parabola: \(\large y=a(x-\color{red}h)^2+\color{red}k \)
has vertex (h, k)....

Answer 3

so the vertex is 4,7???

Answer 4

the vertex is (4,7) and the VERTICAL axis goes through this point...

Answer 5

ok

Answer 6

can give me the equation of the axis?

Answer 7

ummm....im not sure what the equation is

Answer 8

verticle lines have equation x=...
horizontal lines have equation y=...

Answer 9

x=4?