What are the coordinates of point P on the directed line segment from R to Q such that 5 Pis 6 the length of the line segment from R to Q? Round to the nearest tenth, if necessary. A (-3.5, 2.3 ) B. (3.5, -2.3 ) C. (-3, 2) D. (3, 2)

Respuesta :

Answer

Option A is correct.

P(x, y) = (-3.5, 2.3)

Explanation

Mathematically, if a point P(x, y) divides the coordinates R(x₁, y₁) and Q(x₂, y₂) internally in the ratio m:n then point P(x, y) is given as

x = [(mx₂ + nx₁)/(m + n)]

y = [(my₂ + ny₁)/(m + n)]

For this question,

R(x₁, y₁) and Q(x₂, y₂) = R (4, -1) and Q (-5, 3)

m:n = 5:1 (5/6 of a distance divides the two parts of the distance into 5/6 and 1/6, hence, the ratio is 5:1)

x₂ = -5

x₁ = 4

y₂ = 3

y₁ = -1

m = 5

n = 1

x = [(mx₂ + nx₁)/(m + n)]

x = [(5×-5 + 1×4)/(5 + 1)]

x = [(-25 + 4)/(5 + 1)]

x = (-21/6)

x = -3.5

y = [(my₂ + ny₁)/(m + n)]

y = [(5×3 + 1×-1)/(5 + 1)]

y = [(15 - 1)/(5 + 1)]

y = (14/6)

y = 2.3

P(x, y) = (-3.5, 2.3)

Hope this Helps!!!