first find the slope
m = (y2-y1)/(x2-x1)
choose any 2 points
m= (17 - 5)/( 2 + 2)
m = 12/4
m = 3
the difference between 5 and 9 is 4
do 4 x 3 = 12
then 26 + 12 = 38
answer (9,38)
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