I need help asap please

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.

Askate shop rents roller skates as shown on the table below. which graph and function models this situation?

The equation represents the function f, and the graph represents the function g. f(x)=3(5/2)^x determine the relationship between the growth factors of f and g. a. the growth factor of g is twice the growth factor of f. b. the growth factor of f is twice the growth factor of g. c. the growth factor of f is 2.5 times the growth factor of g. d. the growth factor of f is the same as the growth factor of g.