anonymous
  • anonymous
how do I find the y and x intercepts? "y= -2x +1"
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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Jhannybean
  • Jhannybean
just use the replace and solve method. Replace y with 0, solve for x. : x intercept. Replace x with 0, solve for y : y-intercept
anonymous
  • anonymous
let me try it
anonymous
  • anonymous
y= -2x +1 0= -2x + 1 -1 -1 -1 = -2x

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More answers

anonymous
  • anonymous
The problem is I don't know what to do once I am at this part...
Jhannybean
  • Jhannybean
in order to isolate x, we have to divide both sides by -2
jim_thompson5910
  • jim_thompson5910
agreed with Jhannybean -2x means "-2 times x" so if we had -2x = -1, and we wanted to isolate x, we undo the multiplication of the -2 the opposite of multiplication is division. You must divide both sides by -2 to isolate x
anonymous
  • anonymous
You first have to divide -2x by both sides so you would end up with y= x + -2
anonymous
  • anonymous
so x + 0.5?
jim_thompson5910
  • jim_thompson5910
I think you meant `x = 0.5` ?
anonymous
  • anonymous
oops I mean x = 0.5
jim_thompson5910
  • jim_thompson5910
correct. That or x = 1/2 which is the same thing in different form
anonymous
  • anonymous
thanks
jim_thompson5910
  • jim_thompson5910
@Jhannybean why do that? You stated above that y = 0. That's what led to x = 0.5 Don't you mean plug in x = 0 ?
anonymous
  • anonymous
so I plot one on (0.5,0) and another on (0,1) ?
Jhannybean
  • Jhannybean
That's true...i thought you could do either or. inputting it into my calculator i realize that it isn't possible.
anonymous
  • anonymous
was what I put correct?
jim_thompson5910
  • jim_thompson5910
`so I plot one on (0.5,0) and another on (0,1) ?` correct @Amineh0923 now draw a straight line through those points
anonymous
  • anonymous
|dw:1440294750279:dw|
anonymous
  • anonymous
@jim_thompson5910 thanks
jim_thompson5910
  • jim_thompson5910
no problem

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