It's a parabola intersecting the x-axis at -1, -4. and the y axis at y=4.

y= A(x+1)(x+4)

and at x=0 we must have A(0+1)(0+4)=4 thus 4A=4 or A=1

The function is y=(x+1)(x+4)=x^2+5x+4

pls. best

Secure Information

Content will be erased after question is completed.

Enter the email address associated with your account, and we will email you a link to reset your password.

Forgot your password?

Sign Up