Question

A is the point (7,12) and B is the point (2,-1) find the length of AB

Answer 1

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Explanation:

Point 1 = (x₁, y₁) = (7, 12)

Point 2 = (x₂, y₂) = (2, -1)

So,

x₁ = 7

y₁ = 12

x₂ = 2

y₂ = -1

Using distance formula to solve the question.

Solution:

`D=√((x_2-x_1)^2+(y_2-y_1)^2) \\\\D=√((2-7)^2+(-1-12)^2) \\\\D=√((-5)^2+(-13)^2) \\\\D = √(23+169) \\\\D=√(194) \\\\|AB|\approx 13.9 \ units\\\\\rule[225]{225}{2}`