Question 368859
{{{graph(300,300,-10,4,-3,10,(x^2+6x+8))}}}

generate f(x) for 3 or more negative values of x and 3 or more positive values of x
(0,8)
(-1,3)
(-2,0)
(-3,-1)
(1,15)
(2,24)
plot the points
or use a calculator
..
m.ananth@hotmail.ca