Question

List-I	List-II
A) lf $x_1,x_2\in I$ and $x_1<x_2\Rightarrow f\left(x_1\right)\le f\left(x_2\right)$, then $f$ is	1) Strictly increasing
B) lf $x_1,x_2\in I$ and $x_1<x_2\Rightarrow f\left(x_1\right)<f\left(x_2\right)$, then $f$ is	2) Strictly decreasing
C) lf $x_1,x_2\in I$ and $x_1<x_2\Rightarrow f\left(x_1\right)>f\left(x_2\right)$, then $f$ is	3) decreasing
D) lf $x_1,x_2\in I$ and $x_1<x_2\Rightarrow f\left(x_1\right)\ge f\left(x_2\right)$, then $f$ is	4) increasing

• A. A-4, B-3, C-2, D-1.
• B. A-4, B-1, C-2, D-3.
• C. A-2, B-3, C-1, D-4.
• D. A-2, B-3, C-4, D-1.

Answer 1

Answer: (B)

A-4, B-1, C-2, D-3.

As $x$ is increasing value of $f\left(x\right)$ is also increasing
So$f\left(x\right)$is increasing function
If$x$ value is increasing but value of $f\left(x\right)$ is decreasing then $f\left(x\right)$ is decreasing function.