a) 2 b) 0
Work Step by Step
If the line moves up at least one unit, the line intersects with the curve in two places. If the line moves down at least one unit, the line doesn't intersect at all with the curve.
You can help us out by revising, improving and updating this answer.Update this answer
After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.