Which equation has a graph that is a parabola with a vertex at (–2, 0)?y = –2x2y = (x + 2)2y = (x – 2)2y = x2 – 2

in cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. a contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes.

explanation:

some sources quote the lethal dose, for an average 170lbs opiate-naive individual is between 75 and 375 mg

the answer is symmetrical : )