Answer:
Domain: ℝ or (-∞, ∞)
Range: ℝ or (-∞, ∞)
Explanation:
Domain is the set of valid x-values that will result in a real output when plugged into a function. On this graph, we can see that the line continues left past x = 0 and right past x = 14. So, we have to assume that the line continues on forever, and thus its domain is all real numbers (represented by ℝ). In the context of this problem, it means that there are infinite points in time where the falling object will exist at some height.
Range is the set of valid y-values that will result in a real output when plugged into the equation of a line. On this graph, the line continues upwards past y = 7 and downwards past y = 0. So, we have to assume that the line continues on forever, and thus its domain is all real numbers. In the context of this problem, that means that there are infinite heights which the falling object can be at.