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?

math  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.

math  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

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

math  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

math  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.

math  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)

math  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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