Which statements are true about the ordered pair (−4, 0) and the system of equations?

{2x+y=−8x−y=−4

select each correct answer.

the ordered pair (−4, 0) is a solution to the first equation because it makes the first equation true.

the ordered pair (−4, 0) is a solution to the second equation because it makes the second equation true.

the ordered pair (−4, 0) is not a solution to the system because it makes at least one of the equations false.

the ordered pair (−4, 0) is a solution to the system because it makes both equations true.

Astudent is determining the influence of different types of food on the growth rate of spiders. she feeds one group of spiders two caterpillars twice a week. the other group received similarly-sized beetles twice a week. she records the amount of time required for individuals to reach sexual maturity. her hypothesis is that the spiders feeding on caterpillars will have a faster growth rate because caterpillars have a higher protein content compared to beetles. in this experiment, what is the dependent variable? spiders assigned to different feeding groups. time required to reach sexual maturity number of prey items fed twice a week. growth rates of each group.