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OpenStudy (mikezack123):
Choose the equation below that represents the line passing through the point (-3, -1) with a slope of 4. y - 1 = 4(x - 3) y + 1 = 4(x + 3) y - 3 = 4(x + 1) y + 3 = 4(x - 1)
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jimthompson5910 (jim_thompson5910):
point slope form y - y1 = m(x - x1) m is the slope (x1, y1) is the point the line goes through
OpenStudy (mikezack123):
isnt x and y where it goes through?
jimthompson5910 (jim_thompson5910):
no it's (x1,y1)
jimthompson5910 (jim_thompson5910):
x and y are left as they are
jimthompson5910 (jim_thompson5910):
the slope is 4, so m = 4
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jimthompson5910 (jim_thompson5910):
the given point the line goes through is (-3, -1) so x1 = -3 y1 = -1
OpenStudy (mikezack123):
okay....i dont understand what to do with that information...
jimthompson5910 (jim_thompson5910):
you plug it into the equation y - y1 = m(x - x1)
jimthompson5910 (jim_thompson5910):
ie you replace m with 4, x1 with -3, y1 with -1 and you simplify
OpenStudy (mikezack123):
i got B
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jimthompson5910 (jim_thompson5910):
good
OpenStudy (mikezack123):
WOOOOOOOOOOOOOOO!
OpenStudy (mikezack123):
thanks :)
jimthompson5910 (jim_thompson5910):
np
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