# ACT Aspire Math: Using Intercepts to Find the Slope of a Parallel Line

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A line has an x-intercept of -2 and a y-intercept of -4.

What would be the slope of a parallel line?

ACT Aspire | Math |

ACT Aspire Math | Functions |

Math | Functions |

Product Type | ACT Aspire |

Test Prep | ACT Aspire ACT Aspire Math |

### Transcript

a parallel universe there's a website called shin up Unfortunately

we'll never find out because well one thing being parallel

to another means that those two things we'll never meet

so heavy sigh We'd really like to know what's going

on It's new up headquarters Well we could imagine that

at least in the shin uppers minds over there well

they're basically doing the same thing as we are only

with one less hump in there in sadly for them

this makes all the difference for using slope intercept form

correctly Parallel lines likewise basically do the same thing They

have the same slope so their rise over run is

the same All we need to do then to solve

the problem is find the slope of the first line

right And then it's the same Second of course there's

minor detail actually finding that flow But what we got

you covered problem tells us that the line has an

x intercept of negative too which means that when y

zero the line is crossing the x axis that negative

too right there In other words we've been given one

of the points of the line negative to zero But

wait there's more The y intercept is negative For which

means that when x is zero the line is crossing

or intercepting the y axis at negative for well we've

got yet another point here is he wrote negative for

and with two points in our bag we can calculate

the slope using the fancy formula thing here Why two

months Why one over x to have money Sex one

Remember that thing So we got negative four minus zero

And then we have zero minus negative too which is

same as negative for over two Or just negative too

So the new line must have a slope of negative

too because that would be parallel to our line You

know in the land of shmoop is supposed to show

up You know what a copycat All right That's it