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hram777 [196]
3 years ago
13

The endpoints of EF¯¯¯¯¯ are located at E (−3, 2) and F (3, 8). Point D divides EF¯¯¯¯¯ such that ED : DF is equal to 1 : 3. For

each box, select the values in the dropdown that make the statement true. The x-coordinate of point D is and the y-coordinate of point D is
Mathematics
1 answer:
arlik [135]3 years ago
3 0

Answer:

D(x,y) = (-1.5,3.5)

Step-by-step explanation:

Given

E = (-3,2)

F = (3,8)

ED: DF = 1 : 3

Required

Determine the coordinates of D

This is calculated as thus:

D(x,y) = (\frac{mx_2 + nx_1}{m+n},\frac{my_2 + ny_1}{m+n})

Where:

(x_1,y_1) = (-3,2)

(x_2,y_2) = (3,8)

m:n = 1:3

D(x,y) = (\frac{mx_2 + nx_1}{m+n},\frac{my_2 + ny_1}{m+n})

D(x,y) = (\frac{1 * 3 + 3 *-3}{1+3},\frac{1 * 8 + 3 * 2}{1+3})

D(x,y) = (\frac{-6}{4},\frac{14}{4})

D(x,y) = (-1.5,3.5)

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