Consider the problem of finding the line of symmetry and vertex of the quadratic equation f(x) =x^2-8x+15 What is the error in t
he solution below? x^2-8x+15=0 x=-8/2 =-8/2=-4 line of symmetry 8^2-8x+15=0 (-4)^2-8(-4)+15=0 16+32+15=0 y=63 (-4,63) vertex
A.
The solution is correct.
B.
The line of symmetry should have been 4 instead of –4.
C.
The vertex is incorrect; it should have been {–4, 53}.
D.
-4^2 should have been squared as –16 instead of 16.