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Mathematics 7 Online
OpenStudy (anonymous):

WILL FAN AND MEDAL!!!!!! Which equations are equations for the line shown? Choose all answers that are correct

OpenStudy (anonymous):

OpenStudy (anonymous):

@dan815

OpenStudy (anonymous):

@e.mccormick

OpenStudy (anonymous):

@sammixboo

OpenStudy (anonymous):

@sleepyjess

OpenStudy (anonymous):

OpenStudy (anonymous):

anybody?

OpenStudy (anonymous):

@zepdrix

OpenStudy (anonymous):

:P

OpenStudy (anonymous):

@Ashleyisakitty

OpenStudy (anonymous):

Can someone answer them it's only 2 questions...I really need help

OpenStudy (anonymous):

@triciaal

OpenStudy (anonymous):

....

OpenStudy (anonymous):

@dan815 @Ashleyisakitty can you guys help me?

OpenStudy (anonymous):

@sammixboo ???

OpenStudy (anonymous):

anyone?

OpenStudy (anonymous):

@Mehek14

OpenStudy (anonymous):

@Austin6i6

OpenStudy (anonymous):

hey how can i help u

OpenStudy (anonymous):

can you help me answer the questions above?

OpenStudy (anonymous):

the attachments

OpenStudy (anonymous):

sure whats the question

OpenStudy (anonymous):

they're above :)

OpenStudy (anonymous):

anybody at all? these are the last 2 questions I have to answer in order to pass

OpenStudy (anonymous):

the graph one is a

OpenStudy (anonymous):

are you sure?

OpenStudy (anonymous):

it's supposed to be more then one answer

OpenStudy (anonymous):

the second one u posted not the first one

OpenStudy (anonymous):

wait no sorry its D

OpenStudy (anonymous):

sorry

OpenStudy (anonymous):

give me a min ill explain it to u

OpenStudy (anonymous):

ok...

OpenStudy (anonymous):

look at where the line crosses the y axis

OpenStudy (anonymous):

mhm

OpenStudy (texaschic101):

first one....find the slope by using the slope formula and the two sets of points on the line slope(m) = (y2 - y1) / (x2 - x1) (3,4)...x1 = 3 and y1 = 4 (-3,1)...x2 = -3 and y2 = 1 now we sub slope(m) = (1 - 4) / (-3-3) slope(m) = -3/-6 slope(m) = 1/2 now use y - y1 = m(x - x1) slope(m) = 1/2 (3,4)..x1 = 3 and y1 = 4 now we sub y - 4 = 1/2(x - 3) <=== here is one same thing using other points y - y1 = m(x - x1) slope(m) = 1/2 (-3,1)....x1 = -3 and y1 = 1 now we sub y - 1 = 1/2(x - (-3) y - 1 = 1/2(x + 3) <=== here is another one

OpenStudy (anonymous):

cool what about the second one?

OpenStudy (texaschic101):

ok...lets see what I can do with it...give me a sec

OpenStudy (texaschic101):

slope(m) = (y2 - y1) / (x2 - x1) (0,1)...x1 = 0 and y1 = 1 (2,-2)...x2 = 2 and y2 = -2 now we sub slope(m) = (-2-1) / (2-0) slope(m) = -3/2 now use y - y1 = m(x - x1) slope(m) = -3/2 (0,1)...x1 = 0 and y1 = 1 y - 1 = -3/2(x - 0) y - y1 = m(x - x1) (2,-2)...x1 = 2 and y1 = -2 y - (-2) = -3/2(x - 2) y + 2 = -3/2(x - 2) hmmm...not getting your answer choices let me try something y + 2 = -3/2(x - 2) y + 2 = -3/2x + 3 y = -3/2x + 3 - 2 y = -3/2x + 1 y - 4 = -3/2(x + 2) y - 4 = -3/2x - 3 y = -3/2x - 3 + 4 y = -3/2x + 1 ok....its gonna be y - 4 = -3/2(x + 2)

OpenStudy (texaschic101):

I see what I did...I should have used the points (-2,4) and I would have gotten to the answer a whole lot easier

OpenStudy (anonymous):

you sure?? final answer?

OpenStudy (texaschic101):

positive

OpenStudy (anonymous):

ok thanks I got %100

OpenStudy (texaschic101):

sweet :) I love to hear that

OpenStudy (anonymous):

do you think you could help me with something else?

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