Advertisements
Advertisements
Question
Given the function f: x → x2 – 5x + 6, evaluate f(2)
Solution
Give the function f: x → x2 – 5x + 6.
f(2) = 22 – 5(2) + 6
= 4 – 10 + 6
= 0
APPEARS IN
RELATED QUESTIONS
Let f(x) = x2 and g(x) = 2x+ 1 be two real functions. Find (f + g) (x), (f − g) (x), (fg) (x) and \[\left( \frac{f}{g} \right) \left( x \right)\] .
If \[e^{f\left( x \right)} = \frac{10 + x}{10 - x}\] , x ∈ (−10, 10) and \[f\left( x \right) = kf\left( \frac{200 x}{100 + x^2} \right)\] , then k =
Check if the following relation is a function.
Answer the following:
Show that `7log (15/16) + 6log(8/3) + 5log (2/5) + log(32/25)` = log 3
Answer the following:
Find the domain of the following function.
f(x) = `sqrt(x - 3) + 1/(log(5 - x))`
If f(x) = `{{:(x^2",", x ≥ 0),(x^3",", x < 0):}`, then f(x) is ______.
Find the domain for which the functions f(x) = 2x2 – 1 and g(x) = 1 – 3x are equal.
Find the domain of the following functions given by f(x) = x|x|
The domain and range of the real function f defined by f(x) = `(4 - x)/(x - 4)` is given by ______.
If f : R – {2} `rightarrow` R i s a function defined by f(x) = `(x^2 - 4)/(x - 2)`, then its range is ______.
