Answer:
A.
Step-by-step explanation:
The domain has to be a number of days, counted using whole numbers. It might be tempting to choose answer D, but that set includes numbers like 3.1416. Really? I want to rent a vacation home for 3.1416 days? :-)
Answer:
slope = - 5
Step-by-step explanation:
given the equation of a line in the form
y = mx ← m is the slope
y = - 5x is in this form with slope m = - 5
Nope! If they were proportional, one would be able to be reduced to the other.
It's like the (however clichéd) example of pie slices! If you cut two pies into 8 and 20 pieces, three pieces of the pie sliced into eight pieces will not be the same as seven pieces of the pie sliced into twenty!
