Question

Question 4

What is the distance between the points (-6, 7) and
(-1, 1)? Round to the nearest whole unit.
about 13 units
about 7 units
about 61 units
about 8 units

Answer 1

`\displaystyle about\:8\:units`

Explanation:

Use the Distance Formula:

`\displaystyle √([-x_1 + x_2]^2 + [-y_1 + y_2]^2) = D \\ \\ √([6 - 1]^2 + [-7 + 1]^2) = √(5^2 + [-6]^2) = √(25 + 36) = √(61) ≈ 7,810249676 ≈ 8`

Since we are talking about distance, we ONLY want the NON-NEGATIVE root.

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