Question

Slope question

Answer 1

The slope is -0.4. It's negative, so as time passes by, "y" (the height), decreases.

Answer 2

it doesn't exactly tell the domain of 'x'.
I would say 'B' …

Answer 3

y=mx+b

m is the slope and

Answer 4

b is the y intercept

Answer 5

Yea, it is B. You know it cannot be C or D as it is obviously decreasing. It also isn't A because the y intercept has nothing to do with new information. It just means the water height started at 10 cm and decreased .4 from then.