Question

dadas as funções f(x)= x-5 e g(x)= 2x-1 calcule

a= f(2)
b=f(-3)
c=f(10)
d=f(-7)
e=f(11,5)
f=g(0)
g=g(4)
h=g(-2)
i=g(-5)
j=g(1,2)

Answer 1

a) f(2) = 2 - 5
f(2) = -3

b) f(-3) = -3 -5
f(-3) = -8

c) f(10) = 10 - 5
f(10) = 5

d) f(-7) = -7 - 5
f(-7) = -12

e) f(11,5) = 11,5 - 5
f(11,5) = 6,5

f) g(0) = 2 x 0 - 1
g(0) = -1

g) g(4) = 2 X 4 -1
g(4) = 8 -1
g(4) = 7

h) g(-2) = 2 x (-2) -1
g(-2) = -4 -1
g(-2) = -5

i) g(-5) = 2 x (-5) - 1
g(-5) = -10 - 1
g(-5) = -11

j) g(1,2) = 2 x 1,2 - 1
g(1,2) = 2,4 - 1 
g(1,2) = 1,4