When a polygon reflects across the y-axis, how do the coordinates of the points change? a) the sign of the x-coordinate changes. b) the sign of the y-coordinate changes. c) the sign of both the x and y coordinates change. d) the x and y coordinates are switched and the signs of both change.

Altocumulus, altostratus, cirrocumuls, cirrostratus, cirrus, cumulonimbus, cumulus, nimbostratus, stratocumulus, stratus 8.) clouds with tallest vertical development 9.) low altitude clouds in solid layers that produce rain 10.) high altitude thin flat layers of clouds 11.) rain clouds that form under stable atmospheric conditions 12.) middle altitude clouds with globular appearance