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On a number line, the directed line segment from Q to S has endpoints Q at-8 and S at 12. Point R partitions the directed line

segment from Q to S in a 4:1 ratio.

Which expression correctly uses the formulam

(x2 - x) + xy to find the location of point R?

11a (12 - (-8)) + (-8)

(44](12 - (-8) + (-8)

4

-8 - 12) + 12

(44)-8 - 12) + 12

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