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Mathematics 15 Online
OpenStudy (anonymous):

Help me triple plz ill give medal last question @iGreen and @sleepyjess

OpenStudy (anonymous):

OpenStudy (anonymous):

last one well actially one right after this one is las one i promise

OpenStudy (igreen):

What's the y-intercept of the line?

OpenStudy (igreen):

The y-intercept will be where the line crosses the line that goes up..and where's that? @Darknight200

OpenStudy (anonymous):

idk

OpenStudy (anonymous):

wat is it

OpenStudy (anonymous):

i truly dk

OpenStudy (anonymous):

can u tell me

OpenStudy (igreen):

It crosses at 5..which means the y-intercept is 5. The options are in the form of y = mx + b, where b = y-intercept. And since the y-intercept here is 5, that means that the only answers can be B and D..now let's find the slope.

OpenStudy (anonymous):

ok

OpenStudy (igreen):

It gives us two points. (4, 33) and (8, 61). Let's use these to find the slope. \(m = \dfrac{y_2-y_1}{x_2-x_1}\) \(m = \dfrac{61-33}{8-4}\) Subtract the numerators and the denominators: \(m = \dfrac{28}{4}\) Can you divide 28 / 4? @Darknight200

OpenStudy (anonymous):

is 7

OpenStudy (anonymous):

@iGreen

OpenStudy (igreen):

Yep, so the slope is 7, and the y-intercept is 5. That means our equation is y = 7x + 5..Option D.

OpenStudy (anonymous):

thanks so mush i have one more but u probably are tired so......

OpenStudy (igreen):

No, it's fine. Ask as many as you want :P

OpenStudy (anonymous):

ok 1 more

OpenStudy (anonymous):

OpenStudy (anonymous):

get it

OpenStudy (igreen):

y increases by 10 every time x increases by 1.. x = 6, y = 65 So what's 65 + 10? @Darknight200

OpenStudy (anonymous):

75

OpenStudy (anonymous):

is that the answer

OpenStudy (igreen):

Yep, that's the answer.

OpenStudy (anonymous):

ok wanna see my score

OpenStudy (anonymous):

i gotta 100 :D lol thx so mush

OpenStudy (anonymous):

thx

OpenStudy (anonymous):

hi @zBrandz23

OpenStudy (igreen):

No problem

OpenStudy (anonymous):

bye

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