Question 192082
{{{f(x)=(x^2+x+(1/4))-1/4-2}}} complete the square by adding and subtracting 1/4
:
{{{f(x)=(x+1/2)^2-(9/4)}}}
:
vertex is (-1/2,-9/4)
:
to find y intercept set x to zero y=0^2+0-2=-2 : (0,-2)
:
to find x intercept set y to zero 0={{{x^2+x-2}}}
:
{{{(x+2)(x-1)=0}}}
:
x=-2 or 1