Question

solve this and show all your work

(4,-2) (b,9); d=5squareroot sign5
solve using the distance formula

Answer 1

Distance \[=5 \sqrt{5}\]

Answer 2

Distance Formula
\[\sqrt{(x_2 -x_1)^2+(y_2 -y_1)^2)}\]

Answer 3

Plug in what you know and set it equal to \[5\sqrt {5}\]

Answer 4

i dont understand my book says the answer should be 2,6

Answer 5

Okay, let work it through...
\[\sqrt{(4-b)^2+(-2-9)^2}=5\sqrt{5}\]

Answer 6

\[\sqrt{(16-8b+b^2)+(-11)^2}=5\sqrt{5}\]
(16-8b+b^2)+(-11)^2=125