document.write( "Question 943642: I dont understand what plots to point. the question is graph f(x) = 3 and another problem is graph f(x) = 2x. I have to plot the points and determine the slope of the graph. These are two separate problems \n" ); document.write( "
Algebra.Com's Answer #575331 by Alan3354(69443)\"\" \"About 
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I dont understand what plots to point [sic] --> points to plot, I think. the question is graph f(x) = 3 and another problem is graph f(x) = 2x. I have to plot the points and determine the slope of the graph
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\n" ); document.write( "f(x) = 3
\n" ); document.write( "f(x) is y, the vertical axis usually.
\n" ); document.write( "For any x, y = 3
\n" ); document.write( "eg, (0,3), (3,3), (100,3)
\n" ); document.write( "The slope is diffy/diffx. y is not changing, so diffy = 0
\n" ); document.write( "Slope = 0
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\n" ); document.write( "f(x) = 2x
\n" ); document.write( "y = 2x
\n" ); document.write( "---
\n" ); document.write( "It's a straight line.
\n" ); document.write( "Pick 2 values for x and find y.
\n" ); document.write( "eg, x = 0 --> y = 0
\n" ); document.write( "x = 2 --> y = 4
\n" ); document.write( "Plot (0,0) and (2,4)
\n" ); document.write( "Draw a line thru them.
\n" ); document.write( "--------
\n" ); document.write( "Slope = diffy/diffx = (4-0)/(2-0) = 2
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