document.write( "Question 806939: how do i plot d=240-15t on a graph? \n" ); document.write( "
Algebra.Com's Answer #486341 by TimothyLamb(4379)\"\" \"About 
You can put this solution on YOUR website!
You need two points on the line in order to graph it, but first get the equation in slope-intercept form: y = mx + b
\n" ); document.write( "---
\n" ); document.write( "For this problem, t (normally x) is plotted along the horizontal axis, and d (normally y) is plotted along the vertical axis.
\n" ); document.write( "---
\n" ); document.write( "d = 240 - 15t
\n" ); document.write( "d = -15t + 240
\n" ); document.write( "---
\n" ); document.write( "Plug-in two different t values in the equation to get their d values, like so:
\n" ); document.write( "---
\n" ); document.write( "Point p1, use t=0:
\n" ); document.write( "d = -15(0) + 240
\n" ); document.write( "d = 240
\n" ); document.write( "p1 = (0, 240)
\n" ); document.write( "---
\n" ); document.write( "Point p2, use t=1:
\n" ); document.write( "d = -15(1) + 240
\n" ); document.write( "d = 225
\n" ); document.write( "p2 = (1, 225)
\n" ); document.write( "---
\n" ); document.write( "Now draw a line between points p1 and p2 to graph the equation.
\n" ); document.write( "The line extends infinitely beyond both points.
\n" ); document.write( "---
\n" ); document.write( "Solve and graph linear equations:
\n" ); document.write( "https://sooeet.com/math/linear-equation-solver.php
\n" ); document.write( "---
\n" ); document.write( "Solve quadratic equations, quadratic formula:
\n" ); document.write( "https://sooeet.com/math/quadratic-formula-solver.php
\n" ); document.write( "---
\n" ); document.write( "Convert fractions, decimals, and percents:
\n" ); document.write( "https://sooeet.com/math/fraction-decimal-percent.php
\n" ); document.write( "---
\n" ); document.write( "Calculate and graph the linear regression of any data set:
\n" ); document.write( "https://sooeet.com/math/linear-regression.php \n" ); document.write( "
\n" );