Leah is an administrator for a large school district. She wants to know how many hours students spend on homework each week. She asks the question to 250 randomly selected eighth grade students. The results are shown in the table. Which of the following inferences about the eighth grade students in the school district are valid?

hello from mrbilldoesmath!

answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb

you didn't post any answer choices, so its not 100% clear what your teacher is looking for

however, log(15/7) is equivalent to log(15) - log(7)

i'm using the rule log(x/y) = log(x) - log(y)