Question

grafico de f(x)=x2+x-6

Answer 1

2x+x-6
2x+x = 6
3x = 6
  x = 6 / 3
  x = 2

Answer 2

f(x)=x² +x -6

x²+x-6=0
a=1
b=1
c=-6

Δ=b²-4ac
Δ=1²-4(1)(-6)
Δ=1+24
Δ=25

x=(-1±√25)/2=(-1±5)/2
x'=(-1+5)/2=4/2=2
x"=-1-5)/2=-6/2=-3

Xv=-b/2a
Xv=-1/2

Yv=-Δ/4a
Yv=-25/4

X      |  y 
-3     |  0
-1     | -6
-1/2  | -25/4
  0    | -6
  2    |  0

gráfico no anexo