Question

na função real f, definida por f(2x-1)=x+4, calcule f(5)

Answer 1

f(2x -1) = x + 4

f(5) = ?

2x - 1 = 5

2x = 6

x = 3

f(2x - 1 ) = x + 4

f(2.3 - 1 ) = 3 + 4

f(6 - 1) = 7

f(5) = 7