Sketch graph of linear function.

  • Thread starter davie08
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Homework Statement



sketch the graph of the given linear function.
y=5


Homework Equations





The Attempt at a Solution


im unsure of how to do this one without having an x, would x just be undefined and y would be equal to 5.
 

Answers and Replies

  • #2
LCKurtz
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Make a table of values. For x = 0 y = ? x = 1, y = ? etc. then plot it.
 
  • #3
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Make a table of values. For x = 0 y = ? x = 1, y = ? etc. then plot it.

ya but for this one wouldn't x just be undefined since its not given and then it would just be a horizontal line through y=5.
 
  • #4
LCKurtz
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ya but for this one wouldn't x just be undefined since its not given and then it would just be a horizontal line through y=5.
Yes it is a horizontal line through (0,5). It also passes through (1,5), (2,5), (3,5) etc. Just because x is missing in the equation doesn't mean x is "undefined". It is sort of trivial to list a table of values, but it would include the three points above plus as many others as you want. You could think of it as y = 5 + 0*x, a line with slope 0 and y intercept 5.
 

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