Question

Plot the points $(x,y)$ given by the following table:

$x$	$2$	$4$	$-3$	$-2$	$3$	$0$
$y$	$4$	$2$	$0$	$5$	$-3$	$0$

How many $(x,y)$ pairs lie in the first quadrant ?

• A. $0$
• B. $1$
• C. $2$
• D. $3$

Answer 1

Answer: (C)

$2$

All points that lie in the 1st quadrant have their $x-$ co-ordinates and $y-$ co-ordinates positive.

Hence, there are 2 such points.