Question 247081
y=x^2+5x+4
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setting y=0:
0=(x+4)(x+1)
x+4=0
x=-4 ans. (-4,0)
x+1=0
x=-1 ans. (-1,0)
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setting x=0
y=4 ans.(0,4)
{{{ graph( 300, 200, -6, 5, -10, 10, x^2 +5x +4) }}} (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, x^2 +5x +4).