Hey there!
In order to answer this problem, you'll need to refer to the distance formula:
x₁ = –3, x₂ = 2
y₁ = 2, y₂ = –1
_______________
√(x₂ – x₁)² + (y₂ – y₁)²
_________________
√(2 – (–3))² + (–1 – 2)²
____________
√(2 + 3)² + (–3)²
_________
√(5)² + (–3)²
_____
√15 + 9
__
√24 ≈ 4.9
Depending on whether they want you to express the answer as a rational number or a radical number, your answer will either be √24 or 4.9. Hope this helped you out! :-)
