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ACT Aspire Math: Using Intercepts to Find the Slope of a Parallel Line 0 Views
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Description:
A line has an x-intercept of -2 and a y-intercept of -4.
What would be the slope of a parallel line?
Transcript
- 00:01
Okay Shmoop math people We've got more drills for you
- 00:04
Here we go A line has an x intercept of
- 00:07
negative too In a way i intercepted negative for what
- 00:09
would be the slope of a parallel lines Well we
- 00:18
hear it Shmoop headquarters have very strong suspicion that in
Full Transcript
- 00:21
a parallel universe there's a website called shin up Unfortunately
- 00:25
we'll never find out because well one thing being parallel
- 00:28
to another means that those two things we'll never meet
- 00:32
so heavy sigh We'd really like to know what's going
- 00:34
on It's new up headquarters Well we could imagine that
- 00:37
at least in the shin uppers minds over there well
- 00:40
they're basically doing the same thing as we are only
- 00:43
with one less hump in there in sadly for them
- 00:46
this makes all the difference for using slope intercept form
- 00:48
correctly Parallel lines likewise basically do the same thing They
- 00:52
have the same slope so their rise over run is
- 00:54
the same All we need to do then to solve
- 00:56
the problem is find the slope of the first line
- 01:00
right And then it's the same Second of course there's
- 01:02
minor detail actually finding that flow But what we got
- 01:05
you covered problem tells us that the line has an
- 01:07
x intercept of negative too which means that when y
- 01:10
zero the line is crossing the x axis that negative
- 01:13
too right there In other words we've been given one
- 01:15
of the points of the line negative to zero But
- 01:18
wait there's more The y intercept is negative For which
- 01:21
means that when x is zero the line is crossing
- 01:24
or intercepting the y axis at negative for well we've
- 01:28
got yet another point here is he wrote negative for
- 01:30
and with two points in our bag we can calculate
- 01:33
the slope using the fancy formula thing here Why two
- 01:36
months Why one over x to have money Sex one
- 01:38
Remember that thing So we got negative four minus zero
- 01:41
And then we have zero minus negative too which is
- 01:43
same as negative for over two Or just negative too
- 01:46
So the new line must have a slope of negative
- 01:49
too because that would be parallel to our line You
- 01:52
know in the land of shmoop is supposed to show
- 01:54
up You know what a copycat All right That's it
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