Answer: So, y = -8x + 9 is not a proportional relationship.
Step-by-step explanation:
To determine if the equation y = -8x + 9 represents a proportional relationship, we need to check if the ratio of y to x is constant. In other words, we need to see if y is directly proportional to x.
In this equation, y and x are not directly proportional because there is a constant term (9) present. In a proportional relationship, the equation should be in the form of y = kx, where "k" is a constant, and there should be no additional terms like "+9."
So, y = -8x + 9 is not a proportional relationship.