Point r divides `bar(ef)` in the ratio 1 : 5. if the coordinates of e and f are (4, 8) and (11, 4), respectively, what are the coordinates of r to two decimal places?

The endpoints of EF are (4, 8) and (11, 4). We need to find the coordinates of point R that divides EF into a 1:5 ratio. A 1:5 ratio means we need to divide EF into 1+5 equal length partitions, or 6. Point R divides EF into a 1:5 ratio, so R is 1/6 of the from E to F. That ratio is k, found by writing the numerator of the ratio (1) over the sum of the numerator and denominator (6). Our k is 1/6. Now we will find the rise and the run (slope) of the segment between E and F using the slope formula: . The coordinates for R are found in the following formula: . For us that will look like this: . Simplifying gives us coordinates of R as (5 1/6, 7 1/3)

the answer is: the length is 5/6 yards.

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