Can someone give me an explanation on why it’s “y is equal to or greater than 0” ?

What are potential hypotheses (explanations) regarding why there are ecological equivalents between many metatherians and eutherians? discuss your hypothesis in terms of the processes that could lead to the current ecologies and distributions of metatherians and eutherians.

What is the graph of the function fx x+2/x-3?

If a line is defined by the equation y = 5x + 2, what is the slope?