Posted by **barb** on Sunday, August 22, 2010 at 6:57pm.

graph the equation and identify the y intercept: y=1/2x

How do work this can anyone help with step by step as i will have more of these?

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**Damon**, Sunday, August 22, 2010 at 6:59pm
Do you perhaps mean

y = (1/2) x

?

If so, when x = 0, y = 0

If it is really

y = 1/(2x)

then when x = 0, y is undefined.

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**barb**, Sunday, August 22, 2010 at 7:02pm
it really means y= 1/2 x

Does x have to represent 0? I need to know why

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**Damon**, Sunday, August 22, 2010 at 7:03pm
The y axis intercept is the value of y when x = 0

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**Damon**, Sunday, August 22, 2010 at 7:05pm
because any old function that crosses the y axis does so along the vertical line x = 0

This one never quite hits the vertical axis

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**barb**, Sunday, August 22, 2010 at 7:11pm
the question says to list the ordered pair,is the ordered pair (0,0).Some of the questions give "undefined as an option, but not this question.

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**Damon**, Sunday, August 22, 2010 at 7:15pm
Well, 1/(2*0) is undefined

so I would have to say

(0, oo)

and

(0, -oo)

where oo means infinity.

Are you absolutely sure you do not have a typo in the problem statement?

If it were y = x/2 the solution would be (0,0)

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**barb**, Sunday, August 22, 2010 at 7:24pm
Graph the equation and identify the y intercept: y= one half*x or 1/2*x

The y intercept is____

type in the ordered pair.

That is the exact question

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