lolokrat:

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8 months ago
iGreen:

You put it in the English section. lol

8 months ago
iGreen:

What do you think is the answer?

8 months ago
Tranquility:

Moved to Mathematics.

8 months ago
iGreen:

Ah, thanks Tranq

8 months ago
iGreen:

The x-value represents length, so which two options can you rule out?

8 months ago
iGreen:

Mhm, the vertex will give you the highest y-value for a parabola...the y-value is area, so based on that, what do you think is the answer?

8 months ago
iGreen:

Yep, you got it.

8 months ago
iGreen:

Yep, I'd agree with that. It starts falling after 0.5s, because that's when it stops going up. And it falls the rest of the way.

8 months ago
iGreen:

No, that's not right. The y-intercept is what 'y' is when 'x' is equal to 0. What does 'x' represent here?

8 months ago
iGreen:

What is 'x' and what is 'y'? Look at the table.

8 months ago
iGreen:

Yes...the table says "Years since 1975", and what is 'y'?

8 months ago
iGreen:

Yes, y-intercept is what 'y' is when 'x' is 0. Or in this scenario, the y-intercept is what the population is when the years since 1975 is 0.

8 months ago
iGreen:

So what do you think is the answer?

8 months ago
iGreen:

"years since 1975 is 0", that means the year is 1975.

8 months ago
iGreen:

Yes, that's correct.

8 months ago
iGreen:

Okay, what does 'x' represent in this scenario?

8 months ago
iGreen:

Yes, and the vertex of a parabola represents either the minimum y-value or the maximum y-value, depending on which direction it opens up. What is it here?

8 months ago
iGreen:

Yep, so based on this information what do you think is the answer?

8 months ago
iGreen:

No, the minimum height is at the vertex. The x-coordinate represents the horizontal distance from the left side.

8 months ago
iGreen:

No, C represents the y-coordinate, we are looking for what the x-coordinate represents.

8 months ago
iGreen:

Yes, that would be correct.

8 months ago