Question

find the difference between the two points (2, -9) and (-1, 4)

Answer 1

Answer:

$\sqrt{178}$ is your answer

Step-by-step explanation:

Let  A = (2,-9)

     B = (1,- -4)

$AB^{2} = [-1-2]^{2} + [4-(-9)]^{2}$

$AB^{2} =(-3)^{2} + (13)^{2}$

$AB^{2} = 9 + 169 = 178$

AB = $\sqrt{178}$