WeBWorK using host: https://webwork-ptx.aimath.org, format: simple seed: 109

Determine the sign of [math] and [math] at each indicated
point using the contour diagram of [math] shown below. (The point [math]
is that in the first quadrant, at a positive [math] and [math] value; [math]
through [math] are located clockwise from [math], so that [math] is at a
positive [math] value and negative [math], etc.)