document.write( "Question 637114: I am studying for the GRE and have a question about f(x) equations. The problem is f(x) = 3x + 4. I haven't studied f(x) problems in quite a while. How do I figure out what the slope of f is, and what the x and y-intercepts of f is? Also, any other information about slope equations would be greatly appreciated. Thank you! \n" ); document.write( "
Algebra.Com's Answer #401430 by solver91311(24713)\"\" \"About 
You can put this solution on YOUR website!
\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " means the value of the function at .\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Your function is in slope-intercept form, namely , where , is the slope, and is the -coordinate of the -intercept. To find the -coordinate of the -intercept, substitute for and then solve the result for . Note: The -coordinate of the -intercept is , and the -coordinate of the -intercept is .\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Given two points on the line you can calculate the slope thusly:\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "or you can derive an equation of the line using the two-point form:\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "where and are the coordinates of the given points in either case.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Given the slope and a point, you can derive an equation of the line using the point-slope form thusly:\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "where are the coordinates of the given point and is the given/calculated slope.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "If you are given a point and a line either parallel or perpendicular, you can use either:\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "and the point-slope form to derive an equation of the desired line.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "John
\n" ); document.write( "
\n" ); document.write( "My calculator said it, I believe it, that settles it
\n" ); document.write( "
\"The

\n" ); document.write( " \n" ); document.write( "
\n" );