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Mathematics 8 Online
OpenStudy (anonymous):

WILL FAN AND MEDAL I only have a few questions! Alex had $234 in his bank account. For an entire month, Alex adds $2.10/day to the account. He graphs the money he saves versus time. He plots money saved along the vertical axis, and he plots time in days along the horizontal axis. What is the y-intercept of the line?

OpenStudy (anonymous):

x=0, so before the days started. (0,234)

OpenStudy (anonymous):

wait can you explain how I do this? I'm sorry! @Fullerene

OpenStudy (anonymous):

y int is where x=0. x axis is days he has added money. so y int is what he had before depositing anything :)

OpenStudy (anonymous):

so the answer would be.....$2.10? @Fullerene

OpenStudy (anonymous):

No, $234, because that is what he had in the account to begin with. 2.1 is the slope

OpenStudy (anonymous):

so the y intercept will be $234? @Fullerene

OpenStudy (anonymous):

Yup.:)

OpenStudy (anonymous):

i have a few more? @Fullerene

OpenStudy (anonymous):

Sure. Shoot.

OpenStudy (anonymous):

okay !! @Fullerene

OpenStudy (anonymous):

Victor drove away from his house to go on a trip. Several hours later, he was hundreds of miles from home and he stopped driving. Let t represent the amount of time Victor drives in hours, and let d represent the distance he has traveled in miles. Which sketch models this situation? (I'm posting the picture of the answers in a moment)

OpenStudy (anonymous):

@Fullerene

OpenStudy (anonymous):

A, because he starts at 0- the origin, and both time and distance increased.

OpenStudy (anonymous):

one more! @Fullerene

OpenStudy (anonymous):

:)

OpenStudy (anonymous):

During a winter storm, snow falls at a steady rate. At the start of the storm, there was already some snow on the ground from a previous storm. Let t represent time in hours, and let s represent the number of inches of snow on the ground. Which sketch models this situation?

OpenStudy (anonymous):

@Fullerene

OpenStudy (anonymous):

same choices?

OpenStudy (anonymous):

oh uhm wait no lemme see sorry! @Fullerene

OpenStudy (anonymous):

@Fullerene

OpenStudy (anonymous):

@Fullerene

OpenStudy (anonymous):

idk whichever one isnt the same chouces sorry! @Fullerene

OpenStudy (anonymous):

S'all good, thanks. A, b/c it starts on the y-axis higher than the origin, and increases.

OpenStudy (anonymous):

so it would be A again? @Fullerene

OpenStudy (anonymous):

Yes. :)

OpenStudy (anonymous):

oh okay! Thannk you so much! do you mind maybe helping me with my next subject? It's still math @Fullerene

OpenStudy (anonymous):

I can try.

OpenStudy (anonymous):

@Fullerene

OpenStudy (anonymous):

1.25

OpenStudy (anonymous):

@Fullerene

OpenStudy (anonymous):

Slope is change in y over change in x.

OpenStudy (anonymous):

so its 6 over 3? @Fullerene

OpenStudy (anonymous):

is it? @Fullerene

OpenStudy (anonymous):

no, (4-2)/(6-3)

OpenStudy (anonymous):

@Fullerene

OpenStudy (anonymous):

So sorry, gotta go @iambatman , can you help

OpenStudy (anonymous):

@Fullerene its okay thank you so so so much for your help though

OpenStudy (anonymous):

@iambatman can you please help?

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