What is the $x$-coordinate for the $x$-intercept of the line containing the points $(7,4)$ and $(6,3)$?
Slope = ( 4-3) /(7-6) = 1/1 = 1
Equation of line using (6,3)
y = 1 ( x - 6) + 3
y = x - 6 + 3
y = x - 3
For the x intercept, let y = 0
0 = x - 3
3 = x = the x intercept
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