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Question 117314This question is from textbook Glencoe Geometry
: Using graph paper, graph each question and plot the given ordered pair. Then construct a perpendicular segment and find the distance from the point to the line.
22. y = 3, (4, -1)
What I'm wondering is what y = 3 meant. I thought perhaps it meant that on the graph, the first ordered pair would be (0, 3). I looked through the section, but I can't find anything that would explain this, nor any sample problems like this.
This question is from textbook Glencoe Geometry
Answer by ankor@dixie-net.com(22740)   (Show Source):
You can put this solution on YOUR website! Using graph paper, graph each question and plot the given ordered pair. Then construct a perpendicular segment and find the distance from the point to the line.
22. y = 3, (4, -1)
What I'm wondering is what y = 3 meant. I thought perhaps it meant that on the graph, the first ordered pair would be (0, 3). I looked through the section, but I can't find anything that would explain this, nor any sample problems like this.
:
A graph of y = 3 is just a horizontal line passing thru the y value of 3
Looks like this:
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A line perpendicular to this line would have to be a vertical line, right?
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I can't draw a vertical line on this graphing system, however, you can.
Find the given point x=4, y= -1 and draw vertical line from there to the horizontal line.
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Anytime you see y = to a single value, that is a horizontal line
Conversely,
Anytime you see x = to a single value, that is a vertical line
:
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