Find the slope of the line that contains (-2,-2) and (-10,-9). A. M=8/7 B. M=11/12
C. M=12/11 D. M=7/8

D

Step-by-step explanation:

slope of a line m= rise /run= (y1-y2)/ (x1-x2) = -2+9/-2+10 =7/8

answer: #1 ads up by 8 and i don't know #2

large crystals result from very slow cooling.

evaporation of water: this would produce an evaporite which is a sedimentary rock. like a salt pan in a desert. not possible to have volcanic rocks originate this way.

crystalization in molten earth: slow cooling over time. (hundreds to millions of years)

crystalization at earth's surface: this results in fast cooling. (a few hours to a few months or years)

crystalization from cooling off hot water: that would be a hydrothermal deposit. while associated with volcanics they are not volcanic rocks themselves and usually occur fairly rapidly.