# SOLUTION: problem rate of change and slope algebra 1 chapter 4 glencoe algebra problem i need to be solve here goes find the slope of the line that passes through each pair of points (4,9),(

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 Click here to see ALL problems on Linear-systems Question 247793: problem rate of change and slope algebra 1 chapter 4 glencoe algebra problem i need to be solve here goes find the slope of the line that passes through each pair of points (4,9),(1,6) (-4,-1),(-2,-5) (1,-2), (6,2) (4,3.5),(-4,3.5)Found 2 solutions by solver91311, richwmiller:Answer by solver91311(16885)   (Show Source): You can put this solution on YOUR website! Use the slope formula: Where and are the coordinates of the given pair of points. You get to do your own arithmetic. John Answer by richwmiller(9143)   (Show Source): You can put this solution on YOUR website!slope m is m=(y1-y2)/(x1-x2) where y1 is the first y and y2 = the second y where x1 is the first x and x2 = the second x (4,9),(1,6) (-4,-1),(-2,-5) (1,-2), (6,2) (4,3.5),(-4,3.5) be sure to pay attention to the signs and make sure you are plugging in y's and x's minus a minus is plus x is before the comma and y is after the comma so for the first set of points remember y's on top (9-6)/(4-1) second [-1-(-5)]/[-4-(-2)] third [-2-2]/(6-1) fourth [3.5-3.5]/[4-(-4)] what does a zero in the numerator mean? no slope =horizontal line what does it mean when there is a zero in the denominator? undefined slope= vertical line