Question

Brenda recorded the amount of time it took to cook potatoes in a microwave.

Are the data proportional? How do you know?

Answer 1

Yes. As we can see, there is a clear pattern for what we see. For every potato, we have to cook it for an extra 5 minutes. Thus, as the data is constant in the pattern, it is proportional.

Answer 2

Yes, the data is proportional. We know this because, in each scenario, the input is multiplied by 5 to produce the output.

Explanation:

2 × 5 = 10

3 × 5 = 15

5 × 5 = 25