Question 247358
y=x^2+8x+7
y=(x+7)(x+1)
Set y=0 & solve for x.
x+7=0
x=-7 (-7,0)
x+1=0
x=-1 (-1,0)
set x=0 & solve for y.
y=7 (0,7)
{{{ graph( 300, 200, -10, 5, -10, 10, x^2 +8x +7) }}} (graph 300x200 pixels, x from -10 to 5, y from -10 to 10, x^2 +8x +7).