Identify the vertex of y=−10(x+15)2−18.(1 point) Responses (−15,−18) left parenthesis negative 15 comma negative 18 right parenthesis (−10,−15) left parenthesis negative 10 comma negative 15 right parenthesis (15,−18) left parenthesis 15 comma negative 18 right parenthesis (−150,−18)