f(X)=5-3x f(t)+(-2)=eval and simplefy Oct 16 | Emboccassini from Old Bridge, NJ | 1 Answer | 0 Votes Mark favorite Subscribe Comment
f(t) means to substitute t in for x in f(x). f(-2) means to substitute -2 in for x in f(x) f(t) = 5-3t f(-2) = 5-3(-2) = 5+6 = 11 f(t) + f(-2) = (5-3t) + 11 = 5-3t+11 = 5+11-3t = 16 - 3t Oct 16 | Jason S. Comment