SOLUTION: how do i graph linear equations? grahing is so difficult for me and I hate to see it when I'm doing trigenometry or something like that. Please teach me. how do you solve this ques

Algebra ->  Coordinate Systems and Linear Equations  -> Lessons -> SOLUTION: how do i graph linear equations? grahing is so difficult for me and I hate to see it when I'm doing trigenometry or something like that. Please teach me. how do you solve this ques      Log On


   

Question 610579: how do i graph linear equations? grahing is so difficult for me and I hate to see it when I'm doing trigenometry or something like that. Please teach me. how do you solve this question:
y=-2x+1
y=x-5
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
y=-2x+1
You need 2 points to determine the graph of a line.
Let x = 0, then y = -2*0+1 ; so y = 1
Point (0,1)
Let x = 2, then y = -2*2+1 = -4+1 = -3
Point (2,-3)
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Plot the 2 points and draw a line thru them to get:
graph%28400%2C400%2C-10%2C10%2C-10%2C10%2C-2x%2B1%29
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y=x-5
Let x = 0, then y = -5
Point (0,-5)
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Let x = 2, ten y = 2-5 = -3
Point (2,-3)
----
Plot the points and draw the graph thru them to get:
graph%28400%2C400%2C-10%2C10%2C-10%2C10%2Cx-5%29
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Cheers,
Stan H.
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