document.write( "Question 513474: what are the steps to find the x and y intercept of in a equation and give and graph it. \n" ); document.write( "

Algebra.Com's Answer #343015 by oberobic(2304) $\"\"$ $\"About$

You can put this solution on YOUR website!
The general the case can be illustrated with a simple example:
\n" ); document.write( "y = mx + b is the slope-intercept form of an equation
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\n" ); document.write( "m = slope
\n" ); document.write( "m = change in y / change in x
\n" ); document.write( "m = y-y₁ / x-x₁
\n" ); document.write( "m = rise / run
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\n" ); document.write( "b = y-intercept, defined by the point (0,b)
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\n" ); document.write( "The x-intercept is (x,0).
\n" ); document.write( "So you set y=0 and solve for x
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\n" ); document.write( "y = 2x + 3
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\n" ); document.write( "m = 2, the coefficient of x
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\n" ); document.write( "when x=0,
\n" ); document.write( "y = 2(0) + 3
\n" ); document.write( "y = 3
\n" ); document.write( "which is the point
\n" ); document.write( "(0,3)
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\n" ); document.write( "when y=0
\n" ); document.write( "0 = 2x + 3
\n" ); document.write( "2x = -3
\n" ); document.write( "x = -3/2
\n" ); document.write( "which is the point
\n" ); document.write( "(-3/2,0)
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\n" ); document.write( "With two points you can draw a line.
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\n" ); document.write( " $\"+graph%28500%2C500%2C-5%2C5%2C-5%2C5%2C2%2Ax%2B3%29+\"$
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\n" ); document.write( "Done. \n" ); document.write( "

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