x=10 y=-50 planet temperature If we start at zero degree it will affect negative and positive outputs. This is a line graph and we enter lower temperatures first until we are at zero and the highest point of the graph is 10 which means 0+ degree as temperatures warm in air anyway whilst our average is 0 degree the other [lanets average is -25. Considering The arctic is -35 and Africa average temperature is 25 degree and both countries are 40% of the world. We can set our graph to y=m+x+c=0 x=10 y=-50
