 In this video we provide the solution to question number seven for the practice exam number one for math 1050 We're asked to compute f composed with g at x if f of x is given as Negative x and g of x is given as 2x minus 4 now Remember what does composition mean here f of g here means you put g inside of f like so And so we have f of x, but we're gonna replace g of x with the 2x minus 4 Now we take the formula for f of x right here and where we see the x will replace it with the 2x minus 4 Which gives us a negative 2x minus 4 Distributing that negative sign we end up with a negative 2x plus 4 which then would be the composition of the two functions So we see that choice a is in fact the composite of f and g