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Mathematics 14 Online
OpenStudy (anonymous):

Which equation is graphed here? A. y+4= -3/2 (x-2) B.y-2= -3/2(x+4) C. y-4= -3/2 (x+2) D. y+4= -3/2(x+2)

OpenStudy (anonymous):

OpenStudy (danjs):

find the slope of the line

OpenStudy (danjs):

\[\Delta y/ \Delta x\]

OpenStudy (danjs):

well all the answers have the same slope so i assume it is -3/2

OpenStudy (danjs):

(y - y1) = (-3/2) * (x - x1)

OpenStudy (danjs):

see which points fit (x1,y1)

OpenStudy (anonymous):

which point do i use tho, there are like 4

OpenStudy (danjs):

there are infinity points on a line

OpenStudy (danjs):

test is (x1,y1) on the line

OpenStudy (anonymous):

oh ok

OpenStudy (danjs):

for each of the 4 equations where (y-y1) = (-3/2) (x-x1)

OpenStudy (danjs):

a) (2, -4) is on the line . for example

OpenStudy (anonymous):

oh ok so its a

OpenStudy (danjs):

might be others too, i havent checked

OpenStudy (danjs):

ok yeah just A

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