document.write( "Question 358476: My worksheet says to Determine whether each relation is a function... how do i know what to look for when trying to see if it is a function?
\n" ); document.write( "1. y= 1/3x-5
\n" ); document.write( "2. y= 2[x]+3 [x] is the absolute value of x, no way to type that in \n" ); document.write( "
Algebra.Com's Answer #255843 by CharlesG2(834)\"\" \"About 
You can put this solution on YOUR website!
My worksheet says to Determine whether each relation is a function... how do i know what to look for when trying to see if it is a function?
\n" ); document.write( "1. y= 1/3x-5
\n" ); document.write( "2. y= 2[x]+3 [x] is the absolute value of x, no way to type that in\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "if a function it will pass the vertical line test, each value of x corresponds to one single calue of y\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "y = (1/3)x - 5, this is a function, it is a line in form y = mx + b with slope m of 1/3 and y-intercept (vertical-intercept) b of -5\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "y = 2|x| + 3, used the pipe (\"|\") symbol for absolute value
\n" ); document.write( "x can be positive or negative or zero, but result will always be positive
\n" ); document.write( "this is a function, it meets the vertical line test
\n" ); document.write( " \n" ); document.write( "
\n" );