document.write( "Question 59508: A- How can the graph for the rule y=2x+1 be used to predict the result for an imput (x- value) of 7? How can the graph be used to predict the output (y- value) associated with an input of 3 1/2? \n" ); document.write( "
Algebra.Com's Answer #40815 by praseena(37)\"\" \"About 
You can put this solution on YOUR website!
you can solve this problem numerically like this,\r
\n" ); document.write( "\n" ); document.write( "y=2x+1
\n" ); document.write( "when x=7, substitute the x value=7 in the given rule.
\n" ); document.write( " y=2*7+1
\n" ); document.write( " =14+1
\n" ); document.write( " =15
\n" ); document.write( "That is when the input is 7, the output is 15.\r
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\n" ); document.write( "\n" ); document.write( "To predict the output when input is 31/2,
\n" ); document.write( "for that, you just put the value x=31/2 in the given rule
\n" ); document.write( "that is, y = 2 * 31/2 +1
\n" ); document.write( " = 31 + 1= 32
\n" ); document.write( "That is when the inputis 31/2, the out put is 32\r
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