Posted by Sandi on Sunday, October 24, 2010 at 5:11pm.
Write an equation for a parabola with vertex(2,4) and passing through (1,8)?
y=a(x+2)^2+4
8=a(1)+4
4=a

math Please check  MathMate, Sunday, October 24, 2010 at 5:22pm
Correct, good job!