Agl202
  • Agl202
Quick Question... MEDAL!!! What is the equation in point-slope form of the line passing through (4, 0) and (2, 6)? y = 4x − 2 y = 2x − 4 y = −3(x − 4) y = 3(x + 4)
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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Agl202
  • Agl202
What is the equation of a horizontal line passing through the point (−3, 8)? x = −3 y = 8 x = 5 y = −11
Agl202
  • Agl202
For the second one I think it's A. Right?
Agl202
  • Agl202
The first one is D.

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MrNood
  • MrNood
no - not 'right' it's a horizontal line what is true about the y value for all points on a horizontal line?
MrNood
  • MrNood
|dw:1442266108704:dw| for the first one - the answer is not D
Agl202
  • Agl202
Hmmm
MrNood
  • MrNood
for the fist one: you have 2 points (as I sketched above) the slope is calaculated by subtracting the the y values , subtracting the x values and dividing what is the slope of the line in the first one? in the second one: it's a horizontal line what is true about the y value for all points on a horizontal line?
Agl202
  • Agl202
For the second one: all values of x give the same value of y .
Agl202
  • Agl202
y=8 right?
MrNood
  • MrNood
ok good so y is a constant the point (-3, 8) has what y value? (it lies on the line so all points have the same y value)
MrNood
  • MrNood
yes y=8 is correct answer
Agl202
  • Agl202
:D Thx... for the first one: the slope is 1
MrNood
  • MrNood
\[slope = \frac{ y _{2} - y _{1}}{ x _{2}- x _{1} }\] the slope is not 1
Agl202
  • Agl202
-1
MrNood
  • MrNood
no use the equation above
MrNood
  • MrNood
|dw:1442266895084:dw| |dw:1442266952357:dw|
MrNood
  • MrNood
use the above to write down y2-y1 = ? x2-x1= ?
zpupster
  • zpupster
4.0 not 0,4
MrNood
  • MrNood
sorry - yes - my drawing is correct but the table is wrong
MrNood
  • MrNood
|dw:1442267369262:dw|
zpupster
  • zpupster
6-0/2-4
MrNood
  • MrNood
@zpupster this is for @Agl202 please let hinm answer @agl - I am outta here soon - are you going to answer?
MrNood
  • MrNood
since you don't know haw to calculate slope - HOW do you know that is correct?

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