what is the equation of the line that passes through (17,21) and (5,9)

what is the equation in slope intercept form
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1 Answer

??????????????????? "passes thru" ?????????????

line go THRU points

2 points:(5,9) & (17,21)

deltax=17-5=12

deltay=21-9=12

slope=deltay/deltax=1

projekt line from point 1 tu x=0...deltax=-5, so deltay=-5

this point is(0,4)

formula: y=x+4
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