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Mathematics 22 Online
OpenStudy (mathhelp346):

HELP please:

OpenStudy (mathhelp346):

OpenStudy (anonymous):

what do you need help with...

OpenStudy (mathhelp346):

i know the answer to a

OpenStudy (mathhelp346):

b and c?

OpenStudy (anonymous):

do you know how to find the equation of a line using 2 point?

OpenStudy (mathhelp346):

yes

OpenStudy (anonymous):

can you see 3 different lines?

OpenStudy (mathhelp346):

im confused because only one of them intercept the y axis

OpenStudy (mathhelp346):

wait nevermind

OpenStudy (anonymous):

y-intercept is still a point (0,y)

OpenStudy (mathhelp346):

can u help with e too?

OpenStudy (anonymous):

look at the slopes of the 3 lines determine once one is the higher number (ignore the signs) then look at the sign

OpenStudy (mathhelp346):

its negative because its pointing left

OpenStudy (mathhelp346):

right?

OpenStudy (anonymous):

greater slope means higher number |dw:1348096014282:dw|

OpenStudy (mathhelp346):

ok

OpenStudy (mathhelp346):

?

OpenStudy (anonymous):

positive and negative just refers to the direction its travelling if its positive, it moves away from the sensor if its negative, it moves towards the sensor

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