Question

considerando que f (x) = 2x+5 e g(x) =×-2

A) f (4)+g(2)=
B) f(2)+g(4)=
C)f(0)+g(0)=
D)f(1)-g(2)=
E)f(3)-g(10)=



por favor me ajuda ​

Answer 1

f(x) = 2x + 5

g(x) = x - 2

a) f(4) + g(2) = 13 + 0 = 13

f(4) = 2 . 4 + 5

f(4) = 8 + 5

f(4) = 13

g(2) = 2 - 2

g(2) = 0

b) f(2) + g(4) = 9 + 2 = 11

f(2) = 2 . 2 + 5

f(2) = 4 + 5

f(2) = 9

g(4) = 4 - 2

g(4) = 2

c) f(0) + g(0) = 5 + (-2) = 5 - 2 = 3

f(0) = 2 . 0 + 5

f(0) = 0 + 5

f(0) = 5

g(0) = 0 - 2

g(0) = - 2

d) f(1) - g(2) = 7 - 0 = 7

f(1) = 2 . 1 + 5

f(1) = 2 + 5

f(1) = 7

g(2) = 2 - 2

g(2) = 0

e) f(3) - g(10) = 11 - 8 = 3

f(3) = 2 . 3 + 5

f(3) = 6 + 5

f(3) = 11

g(10) = 10 - 2

g(10) = 8