given jl with J(-9, -5) and L(5,16), if K lies on JL and partitions it such that the ratio of JK to KL is 2:5, find the coordinates of K

Answer :

MrRoyal

Answer:

The coordinates of K is (-5,1)

Step-by-step explanation:

Given

[tex]J = (-9,-5)[/tex]

[tex]L = (5,16)[/tex]

[tex]JK:KL = 2:5[/tex]

Required

Determine K

Using Line ratio formula;

We have:

[tex]K(x,y) = (\frac{mx_2 + nx_1}{m+n},\frac{my_2 + ny_1}{m+n})[/tex]

Where

[tex](x_1,y_1) = (-9,-5)[/tex]

[tex](x_2,y_2) = (5,16)[/tex]

[tex]m:n = 2:5[/tex]

So; we have:

[tex]K(x,y) = (\frac{2 * 5 + 5 * -9}{2+5},\frac{2 * 16 + 5 * -5}{2+5})[/tex]

[tex]K(x,y) = (\frac{10 -45}{7},\frac{32 -25}{7})[/tex]

[tex]K(x,y) = (\frac{-35}{7},\frac{7}{7})[/tex]

[tex]K(x,y) = (-5,1)[/tex]

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