# how do i determine -r or +r to use which will work?

I have a brand new computer with lightscribe

reader writer ,why cant I use all -r and + r dvd or cd to copy whatever I want??

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Either will work. -R was the original format for DVD burners when they became available to the public. The newer generation is +R. The reason they have +-R's is that some older DVD players for home use will play ONLY the -R format. If I record something for a friend or relative , I'll always use the -R's, so I know it will play on their player at home. Nowadays, most home players support both +-R's. Lightscribe blank disks are expensive, I would only use them for something special, like a wedding. I find myself using the +R's more for myself, because I have less writing errors on them. A word of caution here, read you burner manual carefully! DVD burners are picky about whose blank disks they will burn to. Your lightscribe will only burn to certain DVD blanks, made by a certain DVD blank manufacturer. Your manual will tell you whose disks to buy.

• 3 years ago

Given: Coordinates of factor P1 (r, 4) Coordinates of factor P2 (-2, 3) slope, m = a million/4 Required: be certain the linked fee of r answer: P1 (r, 4) ==> P1(x1, y1) P2 (-2, 3) ==> P2(x2, y2) x1 = r x2 = - 2 y1 = 4 y2 = 3 Use the formula to get the slope of a line passing by 2 factors it extremely is m = (y2 - y1)/(x2 - x1) replace conventional values to the above formula a million/4 = (3 - 4)/(-2 - r) -2 - r = 4 (- a million) -2 - r = - 4 r = - 2 + 4 r = 2 -------------->>> answer