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OpenStudy (anonymous):
Choose the equation of the line passing through the point (-3, 1) and parallel to y = -x - 4.
a. y = x + 2
b. y = -x - 2
c. y = -x + 4
d. y = x - 4
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OpenStudy (rob1525):
which equation when you plug in -3 for x, y = 1
OpenStudy (anonymous):
idk
OpenStudy (rob1525):
Okay, which equation has the same slope as y= -x-4
OpenStudy (anonymous):
what is a slope
OpenStudy (rob1525):
slope is rise/run
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OpenStudy (anonymous):
im not under standing
OpenStudy (rob1525):
Are you just learning about this stuff?
OpenStudy (anonymous):
yes i am
OpenStudy (rob1525):
when you plug in a number for x you get a value for y right? So example : when x=5 y= -(5)-4=-9. You see?
OpenStudy (anonymous):
ok so u just sub the x with the 5
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OpenStudy (rob1525):
exactlly! Now the slope is the number connected to the x and the y intercept is the other number added or subtracted from x.
OpenStudy (rob1525):
If two equations have the same slope they are said to be parallel. the y intercept is just different.
OpenStudy (anonymous):
ok so -3 = -1 - 4
OpenStudy (rob1525):
well thats -1-4 is -5
OpenStudy (anonymous):
im lost now lol
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OpenStudy (rob1525):
you'er doing great just pick another equation to test.
OpenStudy (rob1525):
remember the numbers for the point is (x,y).
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