The vertices of
△ABC are A(-5, 5), B(-2, 5), and C(-2, 3).
If △ABC is reflected across the line y = -1, find
the coordinates of the vertex C′.

Give the functions f(x) = |x + 2| - 3, what is the domain? a,b,c, or d all real numbers x > 2 x < -2 all real numbers and x cannot equal to 2