f ( x) = 5x −1 ; Find f (∑) − f (Ω)

Question

How would I go about solving this problem?

Answer 1

f(x) = 5x - 1

f(∑) - f(Ω) = 5(∑) - 1 - [ 5(Ω) - 1] = 5(∑) - 5(Ω) = 5(∑ - Ω)

Answer 2

is the delta and omega defined or just variables ?

if there are variables you just substitute the values of x within corresponding ones in each function

since f(x) is in term of x then f(delta) = 5*delta -1 and f(omega) = 5*omega -1

then you have to perform the operation f(delta) -f(omega) = 5delta -1 -f(omega)-1 = f(delta)-f(omega)-2