Find the Slope and y-intercept of the line y = -x

king29

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Sep 26, 2006
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I need some assistance with a problem:

Find the slope and the y-intercept of the line y = -x

Thank you!
GK
 
Re: Slope and y-intercept

king29 said:
Find the slope and the y-intercept
y = -x
y = mx+b
m = -1
b = 0

Where does that leave you?
 
Hello,

Thanks for your assistance! I have no idea what comes next. I'm totally lost.
 
king29 said:
I have no idea what comes next. I'm totally lost.
You were taught in class (and in your book, I'm sure) the slope-intercept form, "y = mx + b", where "m" is the slope and "b" is the y-intercept. You've been given (by the tutor) that m = -1 and b = 0.

Where are you still stuck? Please be specific. Thank you.

Eliz.
 
king29 said:
I need some assistance with a problem:

Find the slope and the y-intercept of the line y = -x

Thank you!
GK

Ok...the slope-intercept form for the equation of a line is

y = mx + b

In this equation, "m" is the slope, and "b" is the y-intercept.

Your equation is

y = -x

Remember that -x means -1x.

So,
y = -1x

Now, since you don't see any constant added to -1x, one could very safely assume that the contant is 0:

y = -1x + 0

Compare this to slope-intercept form,
y = mx + b

What is the slope? What is the y-intercept?
 
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