Question

If $y$ coordinate of a point is zero, then this point always lies

• A. in $I$ quadrant
• B. in $II$ quadrant
• C. on $x$ - axis
• D. on $y$ - axis

Answer 1

The correct option is C

on $x$ - axis

Explanation for the correct option:

Step 1: Evaluate the Coordinate

According to the question,

$y=0$

Thus, the coordinate is $\left(x,y\right)=\left(x,0\right)$

Step 2: Evaluate the points

$x$	$1$	$2$	$3$	$4$
$y$	$0$	$0$	$0$	$0$

Therefore, we can see that all these points only lie on $x$ - axis.

Hence, option $C$ is the correct answer.