Respuesta :
Hello,
y=k(x+2)²-20
and -12=k*(0+2)²-20==>k=8/4=2
Equation's parabola is y=2(x+2)²-20
y=k(x+2)²-20
and -12=k*(0+2)²-20==>k=8/4=2
Equation's parabola is y=2(x+2)²-20