Question

Represent the collection of points whose $y$-coordinate is positive.

• A. Quadrant $\text{I}$ and quadrant $\text{II}$
• B. Quadrant $\text{II}$ and quadrant $\text{III}$
• C. Quadrant $\text{III}$ and quadrant $\text{IV}$
• D. Quadrant $\text{I}$ and quadrant $\text{IV}$

Answer 1

The correct option is A Quadrant $\text{I}$ and quadrant $\text{II}$

The collection of points whose $y$-coordinate is positive lie above the $x$-axis. As there is NO restriction on the values of $x$, it can be positive or negative for any positive values of $y$.


$\therefore$ All the points with positive $y$-coordinate lie in quadrant $\text{I}$ or $\text{II}$.