Someone please help me I’ve been struggling on this

Aword processing program requires a 7- digit registration code made up of the digits 1,2,4,5,6,7 and 9 each number has to be used and no number can be used mor than once how many codes are possible

Aline passes through the point (–7, 5) and has a slope of 1/2 which is another point that the line passes through?

Identify the parent function that can be used to graph the function f(x)=3(x-9)2