1 Select the correct answer.
RS =
Heather's work to find the distance between two points, A(-3,-4) and S(5,7), is shown:
√(1-4) - (-3))² + (7 – 5)²
√(-1)² + (2)?
= + 4
What error, if any, did Heather make?
A А
She substituted incorrectly into the distance formula
B
She subtracted the coordinates instead of adding them.
She made a sign error when simplifying inside the radical.
D
She made no errors.

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