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Write an equation in pointslope form of the line through point J(4, 1) with slope –4.
 one year ago
 one year ago
Write an equation in pointslope form of the line through point J(4, 1) with slope –4.
 one year ago
 one year ago

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AriPottaBest ResponseYou've already chosen the best response.0
do you know what pointslope form is?
 one year ago

AriPottaBest ResponseYou've already chosen the best response.0
so this should be easy. just substitute the numbers in
 one year ago

AriPottaBest ResponseYou've already chosen the best response.0
tell me what pointslope form is.
 one year ago

nagdy1Best ResponseYou've already chosen the best response.0
tells a difference between two points on a line.
 one year ago

nagdy1Best ResponseYou've already chosen the best response.0
The pointslope form expresses the fact that the difference in the y coordinate between two points on a line (that is, y − y1) is proportional to the difference in the x coordinate (that is, x − x1). The proportionality constant is m (the slope of the line).
 one year ago

AriPottaBest ResponseYou've already chosen the best response.0
it's y  y1 = m(x  x1) idk if that's what you meant...
 one year ago

AriPottaBest ResponseYou've already chosen the best response.0
brb i gotta walk mah dog
 one year ago

AriPottaBest ResponseYou've already chosen the best response.0
so it should be easy. you're just substituting the y in the coordinate for y1, the x in the coordinate for x1, and 4 for m
 one year ago

nagdy1Best ResponseYou've already chosen the best response.0
so the answer is y  y1 = m(x  x1)
 one year ago

AriPottaBest ResponseYou've already chosen the best response.0
no, you didn't substitute
 one year ago

AriPottaBest ResponseYou've already chosen the best response.0
our point is (4,1) so x1 is 4 and y1 is 1
 one year ago

nagdy1Best ResponseYou've already chosen the best response.0
y  y1 = m(x  x1) y – 1 = (4)(x – 4) y  1 = 4(x  4) y  1 = 4x + 16 y = 4x + 16 + 1 y = 4x + 17
 one year ago

AriPottaBest ResponseYou've already chosen the best response.0
which one is it then?
 one year ago

nagdy1Best ResponseYou've already chosen the best response.0
STEp by STEp y  y1 = m(x  x1) y – 1 = (4)(x – 4) y  1 = 4(x  4) y  1 = 4x + 16 y = 4x + 16 + 1 y = 4x + 17
 one year ago

AriPottaBest ResponseYou've already chosen the best response.0
i thought the answer was supposed to be in pointslope form
 one year ago

nagdy1Best ResponseYou've already chosen the best response.0
so how can i write y = 4x + 17 to pointslope form
 one year ago

AriPottaBest ResponseYou've already chosen the best response.0
lol. it was already in pointslope in step 1. y  1 = 4(x  4)
 one year ago
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