Question

I'd appreciate it if anyone helped! :)

Answer 1

At 0 weeks she had 75 L water remaining in the barrel (0, 75)

Since she used 5L each week, then at 15 weeks she had 0 L remaining (15, 0).

Answer: Top Right graph

Answer 2

Answer:

Graph given on the top right side.

Step-by-step explanation:

Nina used 5 L of water from her rain barrel to water her plants every week.

She did this until her rain barrel was empty.

So barrel will be empty in the time = $\frac{75}{5}=15$ weeks.

Nina started watering when rain barrel contained 75L of water.

We draw a graph with water remaining on y-axis and weeks to get the barrel empty on x-axis.

Line representing this process will start from a point (0, 75) on y-axis and will end at x-axis at the point (15, 0).

Therefore, graph given on the top right side of the options is the correct answer.