document.write( "Question 50802This question is from textbook Glencoe Agebra 2
\n" ); document.write( ": I need to write an equation in slope-intercept form that satisfies each condition; then graph.\r
\n" ); document.write( "\n" ); document.write( "I am given only that the x-intercept = -4 and the y-intercept = 4.\r
\n" ); document.write( "\n" ); document.write( "I looked up the definitions of x-intercept and y-intercept. And reading in my textbook I see the formula of y = mx+ b. In that formula I understand that m is the slope and b is the y-intercept. But what is the x-intercept in this formula??\r
\n" ); document.write( "\n" ); document.write( "Thank you and I hope tonight is possible for an answer? \n" ); document.write( "
Algebra.Com's Answer #33823 by Earlsdon(6294)\"\" \"About 
You can put this solution on YOUR website!
You are given the x-intercept (x = -4) but that is really the point (-4, 0).
\n" ); document.write( "Similarly, the y-intercept (y = 4) is really the point (0, 4).
\n" ); document.write( "Now with these two points, you can find the slope, m, using \"m+=+%28y2-y1%29%2F%28x2-x1%29\" where:
\n" ); document.write( "(-4, 0) = (x1, y1) and (0, 4) = (x2, y2)
\n" ); document.write( "\"m+=+%284-0%29%2F%280-%28-4%29%29\"
\n" ); document.write( "\"m+=+4%2F4\"
\n" ); document.write( "\"m+=+1\"\r
\n" ); document.write( "\n" ); document.write( "Now you can write, in slope-intercept form \"y+=+mx+%2B+b\":
\n" ); document.write( "\"y+=+%281%29x+%2B+b\" Now substitute the given y-intercept (4) for b.
\n" ); document.write( "\"y+=+x+%2B+4\"
\n" ); document.write( "Now for the graph:
\n" ); document.write( "\"graph%28300%2C200%2C-6%2C5%2C-5%2C6%2Cx%2B4%29\"
\n" ); document.write( "As you can see from the graph, the line intercepts the x-axis (x-intercept) at the point (-4, 0) and it intercepts the y-axis (y-intercept) at the point (0, 4).
\n" ); document.write( "The slope (rise over run) can be seen, from the graph, to be 1.\r
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