A store received about 300 phone calls last week. At that rate, which of these is a reasonable number of phone calls the store would receive in 16 weeks?

the answer is (-8,-5)

step-by-step explanation:

the endpoint to midpoint is half the length. the length is (-2,-1) so when you are at the midpoint just add it to it to find your answer -6+(-2)= -8 and -4+(-1)=-5 so (-8,-5)

well what is the rest of your problem?