Question

What is the distance between the points (–4, 2) and (3, –5)?

d = StartRoot (x 2 minus x 1) squared + (y 2 minus y 1) squared EndRoot

StartRoot 10 EndRoot
StartRoot 28 EndRoot
StartRoot 98 EndRoot
StartRoot 117 EndRoot

Answer 1

Distance = sqrt[(3 - (-4))^2 + (-5 - 2)^2] = sqrt[7^2 + (-7)^2] = sqrt[49 + 49] = sqrt(98) = 7√2.

So the correct choice is StartRoot 98 EndRoot.