document.write( "Question 262074: How do you graph the equation: y= -x + 7? Also how can you tell if it is a function? \n" ); document.write( "
Algebra.Com's Answer #193088 by richwmiller(17219)\"\" \"About 
You can put this solution on YOUR website!
All you need are two points to graph a line if you do them both correctly.
\n" ); document.write( "when x=0 y=7
\n" ); document.write( "when y=0 x=7
\n" ); document.write( "Since it is a line, there is only one y for each x. Therefore it is a function.
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