Question

Find f (-9) if f (x) = (20+x)/5

Answer 1

The given function is expressed as

f(x) = (20 + x)/5

We want to find f(- 9). To do this, we would substitute x = - 9 into the function. It becomes

f(- 9) = (20 + - 9)/5 = (20 - 9)/5

f(- 9) = 11/5