mikewwe13:

https://static.k12.com/nextgen_media/assets/8090415-NG_AL1_O_07_U12_Quiz_03.png The graph models how the population of a particular species of flower in a forest has changed over time. What does the y-intercept represent? A. When initially counted, the flower population was 200. B. It took 200 years for the flower to disappear from the forest. C. The difference between the greatest and least populations was 200. D. The flower population peaked at 200.

8 months ago
mikewwe13:

@Vocaloid

8 months ago
mikewwe13:

8 months ago
mikewwe13:

y-intercept shows 200

8 months ago
Vocaloid:

yeah good

8 months ago
mikewwe13:

8 months ago
Vocaloid:

any thoughts? the "vertex" is the highest point of the parabola

8 months ago
mikewwe13:

the third one

8 months ago
Vocaloid:

if it's on the ground, that wouldn't be the highest point any other ideas?

8 months ago
mikewwe13:

not third, fourth or second

8 months ago
mikewwe13:

it's first since you said it's the highest

8 months ago
mikewwe13:

or maybe i'm wrong

8 months ago
Vocaloid:

it's asking about the y-coordinate, what physical property does y represent in this situation? height or time?

8 months ago
mikewwe13:

height

8 months ago
Vocaloid:

good, so the y-coordinate of the vertex would be the highest height which answer choice corresponds with this idea?

8 months ago
mikewwe13:

fourth

8 months ago
Vocaloid:

y is height, not time

8 months ago
mikewwe13:

oh i'm sorry

8 months ago
mikewwe13:

second

8 months ago
Vocaloid:

well done

8 months ago
mikewwe13:

https://static.k12.com/nextgen_media/assets/8090417-NG_AL1_O_07_U12_Quiz_09.png The graph models the height of a diver above water, in feet, x seconds after jumping off a springboard. What does the x-intercept represent? A. The diver was in the air for 2 s. B. The springboard was 2 ft above the surface of the water. C. The diver jumped 2 ft above the springboard. D. The diver reached the maximum jump height after 2 s.

8 months ago
mikewwe13:

8 months ago
Vocaloid:

good

8 months ago
mikewwe13:

8 months ago
Vocaloid:

if you look at the parabola, the graph is increasing across a certain range of x values, what would that be?

8 months ago
mikewwe13:

8

8 months ago
mikewwe13:

8 months ago
Vocaloid:

good

8 months ago
mikewwe13:

8 months ago
Vocaloid:

any thoughts or ideas so far? I'm not 100% sure myself but I have a few ideas

8 months ago
mikewwe13:

the answer is either C or D

8 months ago
Vocaloid:

the x-intercept occurs when y = 0, so area = 0, so this can't be the max area remember that x represents the length of the fencing used

8 months ago
mikewwe13:

ok not D

8 months ago
Vocaloid:

[this one is kind of hard to conceptualize, but imagine if they take all of the fencing and lay it out on a straight line, this would give us 0 area and the maximum length of fencing 100]

8 months ago
Vocaloid:

so first one is the best choice

8 months ago
mikewwe13:

correct

8 months ago
mikewwe13:

Thank you so much, i couldn't done it without you, you're so smart

8 months ago
mikewwe13:

but also can i ask one question

8 months ago
Vocaloid:

sure what

8 months ago
mikewwe13:

Can you believe Toys R us are closing down ?

8 months ago
Vocaloid:

it's a little off topic but yeah, online retailers are taking over, personally I don't see it as a bad thing but *shrug*

8 months ago
mikewwe13:

I mean this new generation of kids are over the new technology now and Toys R us are shutting down cause Technology took over

8 months ago
mikewwe13:

every time i see a little kid they're on an ipad or iphone

8 months ago
Vocaloid: