Use the distance formula to find the distance.
D=√(x2-x1)^2 + (y2-y1)^2 (the entire equation is square rooted)
Plug in your numbers
D=√(4-1)^2 + (8-2)^2
D=√(3)^2 + (6)^2
D=√9+36
D=√45
D=3√5
D=6.7
Yes -1 is a rational number. We can express it as a fraction of two whole numbers
One way is -1 = -1/1
Answer:
I think the answer is 8.25 × 10^3