Find the y-coordinate of the points on the graph of
from which the tangents to the curve pass through the origin.
Attempted solution:
Drew the graph of
and sketched two lines, each containing the origin and intersecting the graph in one point.
How do I find the point that I'm looking for on the graph,
I think I'm looking for the equation of each line that contains (0,0) and a point of tangency.
According to my sketch, there seems to be two such points, one in Quadrant I and one in Quadrant IV.
The answer in the back of the textbook is