If the endpoints of the diameter of a circle are (8, 6) and (2, 0), what is the standard form equation of the circle?

What’s the domain of this function? fastttt

What is the value of x when x + 7 = 21?

1jessica's home town is a mid-sized city experiencing a decline in population. the following graph models the estimated population if the decline continues at the same rate. select the most appropriate unit for the measure of time that the graph represents. a. years b. hours c. days d. weeks