Perform the indicated operation.

Question

f(t) = t-5

g(t) = 3t

find 2f(1) - g (1) 

Answer 1

f(t) = t - 5

g(t) = 3t

 

2*f(1) - g(1)

 

2*(t-5) - 3t

 

Recall that f(1) means f(t=1) and g(1) means g(t=1).  So just replace the t with 1:

 

2*(1-5) - 3*(1) = 2*(-4) - 3 = -8 - 3 = -11