Domain is (-10, infinity) and range is negative infinity, positive infinity.
Answer:
505
Step-by-step explanation:
sn=2a+(n-1)d
2*5+(100-1)5
10+(99)5
505
Slope = Change in Y / change in X
Slope = (8 - 2) / (9-6)
Slope = 6 / 3
Slope = 2
diagonal = 9√2 ≈ 12.73
the diagonal splits the square into 2 right triangles with the hypotenuse being the diagonal of the square
using Pythagoras' identity
d = √(9² + 9²) = √162 = 9√2 ≈ 12.73 ( to 2 dec. places )
The amount of passwords possible is:

Since he only tries once for the first try we get:

Thus there is a:

Chance he will guess the password on his first try.