What is the the vertex of y=x2+7x+12?
1 Answer
Jan 29, 2016
Explanation:
Re-express in vertex form by completing the square:
y=x2+7x+12
=x2+7x+(72)2−(72)2+12
=(x+72)2−494+484
=1(x−(−72))2+(−14)
The equation:
y=1(x−(−72))2+(−14)
is in vertex form:
y=a(x−h)2+k
with multiplier