Question

Please can someone help with this question? Need the working out too

Answer 1

AB ≈ 9.85 units

Explanation:

Calculate AB using the distance formula

AB =
`\sqrt{(x_(2)-x_(1))^2+(y_(2)-y_(1))^2 }`

with (x₁, y₁ ) = A(1, 7) and (x₂, y₂ ) = B(10, 3)

AB =
`√((10-1)^2+(3-7)^2)`

=
`√(9^2+(-4)^2)`

=
`√(81+16)`

=
`√(97)` ≈ 9.85 units ( to 3 significant figures )