Which of the following is function - Vidyadip

MCQ

Which of the following is function

A
$y = \sqrt x - \left| x \right|;\,\,x \in R$
✓
$y = \sqrt x - \left| x \right|;\,\,x \ge 1$
C
$x = {y^2}$
D
none

✓

Answer

Correct option: B.

$y = \sqrt x - \left| x \right|;\,\,x \ge 1$

b

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from STD 12 - 1. relation and function→STD 12 - 1. relation and function — all question types→Mathematics STD 12 Science question papers→CBSE Board STD 12 Science question papers→CBSE Board question paper generator→

Similar questions

The area common to the ellipse $\frac{\text{x}^2}{\text{a}^2}+\frac{\text{y}^2}{\text{b}^2}=1$ and $\frac{\text{x}^2}{\text{b}^2}+\frac{\text{y}^2}{\text{a}^2}=1,0<\text{b}<\text{a}$ is:

Let $A \equiv (\lambda + 2, 1 - 2\lambda , \lambda + 2)$ and $B \equiv (2k + 1, k, k +1)$ and $ \lambda , k \in R.$ Then minimum distance between $A$ and $B$ is -

The function $f(x)=x^x$ decreases on the interval :

The vector equation of the plane containing the line $\vec{\text{r}}=(-2\hat{\text{i}}-3\hat{\text{j}}+\hat{\text{k}})+\lambda(3\hat{\text{i}}-2\hat{\text{j}}-\hat{\text{k}})$ and the point $\hat{\text{i}}+2\hat{\text{j}}+3\hat{\text{k}}$ is:

The number of constraints allowed in a linear program is which of the following?

Choose the correct answer in each of the following:
If A and B are two events such that P(A) ≠ 0 and P(B | A) = 1, then

Let $\overrightarrow{OA}$ and $\overrightarrow{OB}$ be two sides of a triangle. The median $\overrightarrow{AM}$ is perpendicular to angle bisector $\overrightarrow{OL}$ and $\left| \overrightarrow{AM} \right|:\left| \overrightarrow{OL} \right|=1:2$.The angle between $\overrightarrow{OA}$ and $\overrightarrow{OB}$ is

Let $A$ and $B$ be two symmetric matrices of order $3.$

Statement $-1$: $A(BA)$ and $(AB)A$ are symmetric matrices.

Statement $-2:$ $AB$ is symmetric matrix if matrix multiplication of $A$ with $B$ is commutative.

Evaluate the integral :$\int {\frac{{\ln \,(6{x^2})}}{x}\,dx} $

$\int_0^1 {\frac{{{e^{ - x}}}}{{1 + {e^{ - x}}}}} \,dx = $