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nagdy1
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Write an equation in pointslope form of the line through point J(4, 1) with slope –4.
 2 years ago
 2 years ago
nagdy1 Group Title
Write an equation in pointslope form of the line through point J(4, 1) with slope –4.
 2 years ago
 2 years ago

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AriPotta Group TitleBest ResponseYou've already chosen the best response.0
do you know what pointslope form is?
 2 years ago

AriPotta Group TitleBest ResponseYou've already chosen the best response.0
so this should be easy. just substitute the numbers in
 2 years ago

nagdy1 Group TitleBest ResponseYou've already chosen the best response.0
give u hard time
 2 years ago

AriPotta Group TitleBest ResponseYou've already chosen the best response.0
tell me what pointslope form is.
 2 years ago

nagdy1 Group TitleBest ResponseYou've already chosen the best response.0
tells a difference between two points on a line.
 2 years ago

nagdy1 Group TitleBest 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).
 2 years ago

AriPotta Group TitleBest ResponseYou've already chosen the best response.0
it's y  y1 = m(x  x1) idk if that's what you meant...
 2 years ago

AriPotta Group TitleBest ResponseYou've already chosen the best response.0
brb i gotta walk mah dog
 2 years ago

AriPotta Group TitleBest ResponseYou've already chosen the best response.0
alright i'm back
 2 years ago

AriPotta Group TitleBest 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
 2 years ago

nagdy1 Group TitleBest ResponseYou've already chosen the best response.0
so the answer is y  y1 = m(x  x1)
 2 years ago

AriPotta Group TitleBest ResponseYou've already chosen the best response.0
no, you didn't substitute
 2 years ago

AriPotta Group TitleBest ResponseYou've already chosen the best response.0
our point is (4,1) so x1 is 4 and y1 is 1
 2 years ago

nagdy1 Group TitleBest 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
 2 years ago

AriPotta Group TitleBest ResponseYou've already chosen the best response.0
which one is it then?
 2 years ago

nagdy1 Group TitleBest ResponseYou've already chosen the best response.0
y = 4x + 17
 2 years ago

nagdy1 Group TitleBest 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
 2 years ago

AriPotta Group TitleBest ResponseYou've already chosen the best response.0
i thought the answer was supposed to be in pointslope form
 2 years ago

nagdy1 Group TitleBest ResponseYou've already chosen the best response.0
so how can i write y = 4x + 17 to pointslope form
 2 years ago

AriPotta Group TitleBest ResponseYou've already chosen the best response.0
lol. it was already in pointslope in step 1. y  1 = 4(x  4)
 2 years ago

nagdy1 Group TitleBest ResponseYou've already chosen the best response.0
haha never knew that
 2 years ago
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