Question 1014129
5x^2+50x+123
vertex x value is -b/2a
vertex is -5 for x
y is -2
(-5,-1.8) is vertex.
symmetrical around x= -5
from vertex to one root x changes by +3/5, y changes plus 1.8
from vertex to other root x changes by -3/5, y changes plus 1.8 (-5.6,0)
{{{graph(300,200,-6,-4,-10,10,5x^2+50x+123)}}}