Answer
y-coordinates are positive in quadrants I and II.
Work Step by Step
We call the upper right quadrant as quadrant I, and count the others in the counterclockwise direction.
$\left[\begin{array}{ccc}
II & | & I\\
-- & (0,0) & --\\
III & | & IV
\end{array}\right]$
Right of the y axis, x-coordinates are positive,
left of the y axis, x-coordinates are negative.
Above the x-axis, y-coordinates are positive
below the x-axis, y-coordinates are negative.
y-coordinates are positive in quadrants I and II.
