document.write( "Question 1119844: The first known use of the word \"podcast\" occurred in the US in 2004. By 2007, 27% of IS consumers were aware of podcasting and by 2015 that number had grown to 49%. Write a linear equation in slope-intercept form that models this growth. Let x stand for the number of years after 2007 and let y stand for the percentage of US consumers aware of podcasting.\r
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Algebra.Com's Answer #735511 by Boreal(15235) You can put this solution on YOUR website! 2004, 0 known \n" ); document.write( "2007, 27% \n" ); document.write( "2015, 49% \n" ); document.write( "This becomes (0, 27) and (8, 49) \n" ); document.write( "point-slope formula y-y1=m(x-x1) m slope (x1, y1) a point. Slope is 22/8 or 11/4 \n" ); document.write( "y-27=(11/4)x \n" ); document.write( "y=2.75x+27 ANSWER \n" ); document.write( "in 2007, x=0 and y=27 \n" ); document.write( "in 2015, x=8 and y=49 \n" ); document.write( " |