Question

4. Which of the following represent the distance

formula? Select all that apply.
A d = √(x₁-x₂)² + (y₁ − y₂)²
B d = √(x₂− ×₂)² + (⁄₂ − y,}²
C d = √(x₂+x₂)² + (y₂ + y,)²
D d=√√₂-X₁1² + VY₂ − Y₁1²

Answer 1

A appears to be the only correct answer

a^2+b^2=c^2

you are solving for c when finding distance, so (a^2 + b^2) must be square rooted, as a whole, not separately

and a = (x1-x2)

and b = (y1-y2)

you can flip the 1 and 2 but you have to flip for both x and y

like x1-x2 means you have to do y1-y2

like x2-x1 means you have to do y2-y1

so both above are correct as long as the order of 1 and 2 stays the same for both x and y