f(4) is 49
Explanation:
Given:
f(x) = 12x + 1
f(4) = ?
we have to substitute the value of x = 4 in the given equation.
f(4) = 12 X 4 + 1
f(4) = 49
Whenever there is such type of question then we have to just put the value of x in the equation. In case of f '(4) then we have to differentiate the given equation with respect to x first and then substitute the value of x in the differentiated equation.
Therefore, f(4) is 49
