Find the inverse of the function f(x)=-4x +8

a f-1 (x)= -3/5 +5
b f-1 (x)= -1/4x +2
c f-1 (x)+ 4x-8
d f-1(x)=-5x+3

The ratio pv to nrt is plotted against pressure for ch4 at 0°c and 200°c. why does the curve for 0°c drop below the horizontal line for an ideal gas whereas the curve for 200°c does not?

Jack did 3/5 of all problems on his weekend homework before sunday. on sunday he solved 1/3 of what was left and the last 4 problems. how many problems were assigned for the weekend?

Which expression demonstrates the use of the commutative property of addition in the first step of simplifying the expression (-1+i)+(21+5i)+0