Question

determine, sendo a fução f(x)= 2x -3:
a) f(5)
b) f(0)
c) f(-1)
d) f(2)

Answer 1

a)f(5) = 2.5 - 3
  f(5) = 10-3
  f(5) = 7

b) f(0) = 2.0 - 3
    f(0) = -3

c) f(-1) = 2(-1) -3
   f(-1) = -2-3
   f(-1) = -5

d) f(2) = 2.2-3
   f(2) = 4-3
  f(2) = 1

Answer 2

f(x)=2x-3
a) f(5)=2.5-3=10-3=7

b) f(0)=2.0-3=0-3=-3

c) f(-1)=2.(-1)-3=-2-3=-5

d) f(2)=2.2-3=4-3=1