Question

Evaluate the function T(x) =19 -x, when x =-3

Answer 1

For all functions involving x, just substitute x into the function.

So if \(T(x)=19-x\) when \(x=-3\), the function simply becomes \(T(-3)=19-(-3)\)

Answer 2

T(x) =19 -x
put x = -3 here and get your answer