Which expression correctly uses the formula (StartFraction m Over m + n EndFraction) (x 2 minus x 1) + x 1 to find the location of point R? (StartFraction 1 Over 1 + 4 EndFraction) (12 minus (negative 8)) + (negative 8)
(StartFraction 4 Over 4 + 1 EndFraction) (12 minus (negative 8)) + (negative 8)
(StartFraction 4 Over 4 + 1 EndFraction) (negative 8 minus 12) + 12
(StartFraction 4 Over 1 + 4 EndFraction) (negative 8 minus 12) + 12