Final answer:
To find the points on the lemniscate where the tangent is horizontal, we need to find the critical points of the lemniscate.
Step-by-step explanation:
The question asks to find the points on the lemniscate where the tangent is horizontal. To do this, we need to find the critical points of the lemniscate. A critical point occurs when the derivative of the function is equal to zero or undefined. In this case, we can find the critical points by finding the x-values that satisfy the equation:
dy/dx = 0
Once we have the x-values, we can substitute them back into the equation of the lemniscate to find the corresponding y-values. These points will be the points on the lemniscate where the tangent is horizontal.