Question 936233
Previously Posted
y= -2x^2-12x-10  P(0, -10) y-intercept
y = -2(x+3)^2 + 18  - 10
y = -2(x+3)^2 + 8
V(-3,8)
...... 
0 = -2(x+3)^2 + 8
4 =(x+3)^2
± 2 = x+3
-3 ± 2 = x
P(-5,0) and P(-1,0) x-intercepts
{{{drawing(300,300,    -10,10,-10,10,  blue(line(-3,10,-3,-10))  ,  
 grid(1),
circle(-1, 0,0.4),
circle(-5,0,0.4),
graph( 300, 300, -10,10,-10,10,0, -2x^2-12x-10 ))}}}