What is the y-coordinate of the vertex of a parabola with the equation y = x2 - 6x + 14?
2007-01-26 06:29:56 · 3 answers · asked by <333 3 in Education & Reference ➔ Homework Help
by the way "x2" means x squared. if that helps at all!
2007-01-26 06:53:32 · update #1
When the function is in the form y=ax2+bx+c, to find the vertex, use the formula x= -b/2a to find x. Then you can plug the value of x back into the formula to find y. You can also manipulate the equation into the vertex form, but I find this way easier.
For your problem, -b/2a = 6/2 = 3, and plugging it into the formula you get 9-18+14 = 5. So the vertex is (3,5) and the y coordinate is 5.
2007-01-26 07:04:15 · answer #1 · answered by decivilian 3 · 0⤊ 0⤋
5
2007-01-26 14:39:32 · answer #2 · answered by Froggiesmiles 3 · 0⤊ 1⤋
well, u need X on a side right? - 14 from each side, then go from there.
2007-01-26 15:00:37 · answer #3 · answered by M 3 · 0⤊ 0⤋