If f(x) = x + 3, then f(x) + f(–x) is equal to
(a) 3
(b) 2x
(c) 0
(d) 6

Open in App

Solution

Given: f(x) = x + 3

f(–x) = –x + 3

Thus,
f(x) + f(–x) = x + 3 + (–x + 3)
= x + 3 – x + 3
= 6

Hence, the correct option is (d).

Suggest Corrections

Similar questions

Question 7
If p(x) = x + 3 , then p(x) + p(-x) is equal to

A) 3
B) 2x
C) 0
D) 6

Question 7
If p(x) = x + 3 , then p(x) + p(-x) is equal to

A) 3
B) 2x
C) 0
D) 6

f (x) = x^{3} - \frac{1}{x^{3}},

f (x) + f (\frac{1}{x})

\frac{2}{x^{3}}

\neq

\leq

Join BYJU'S Learning Program