Question

The distance between the points $(-3,0)$ and $(7,0)$ is

• A. $10$ units
• B. $7$ units
• C. $3$ units
• D. none of these

Answer 1

The correct option is A $10$ units

Distance between two points $A(x_1,y_1)$ and $B(x_2,y_2)$ is given by $d=\sqrt{(x_2-x_1{)}^2+(y_2-y_1{)}^2}$.

Using distance formula we've, the distance between the points $(-3,0)$ and $(7,0)$ is $\sqrt{(7-(-3){)}^2+(0-0{)}^2}=\sqrt{{10}^2}=10$ units.
It can also be observed that both the points lie on $X$-axis.
Distance between them $|x_2-x_1|=|7-(-3)|=10$