Question

On the day that a certain celebrity proposes marriage, 252525 people know about it. Each day afterward, the number of people who know triples.

Which graph shows the number yyy of people who know about the proposal xxx days afterwards?

Answer 1

A

Explanation:

the one in the middle of 50 and 0 and curves up and goes straight up after

Answer 2

A

Explanation:

The graphs are attached.

First of all, the day proposal goes out, 25 people know, so the initial condition is y = 25 at x = 0.

Hence, graph would start at y = 25.

Looking at the graphs, we can eliminate B and D immediately because they start at 50.

Now, it says every day, this number (y) triples, so 1 day after, it would be:

25 * 3 = 75

So, the graph would show x = 1 and y = 75

We can eliminate "C" as it doesn't show 75 at x = 1.

And we look at A and it is correct.

So,

A is the graph of the situation represented.