3) Does the following mapping diagram show a function? *

Football player weighed 170 2/3 pounds in may. during the summer he gained 25 5/12 pounds. during the first week of fall practice he lost 10 1/4 pounds and during the second week he lost another 3 1/2 ponds. how much does he weigh at this point? a.182 1/3ib b.181 1/2ib c.182 5/12ib d.183 2/3ib

If y varies directly as x2 and y=6 when x=6, find the constant of variation.

F(x) = 1/x g(x)=x-4 can you evaluate (g*f)(0) ? why or why not?