Question 8: How do we now when the horizontal asymptote is y=0? How do we know when the horizontal asymptote is at some oter y value (y=a)? How do we know when the asymptote is slanted? (hint: the degree of numerator and denominator) Have you ever wanted to know how much you weigh on moon? How much money earned on simple interest investments? Variation can be used in some applications to describe relationships between quantities. Question 9: What is the main difference in the general equation for Direct, Inverse and Joint Variation? Question 10: Determine which is an example of direct variation, inverse variation and joint variation. a) p = 293r2 b) y = 73 c) a = 2b