Point slope form is an equation to graph lines.
I don't know if this is right but i think the answer is 11 because as the number of people in the group goes up the price keeps decreasing by 3 so I made a table to see the difference...
1=42
8=39
9=36
10=33
11=30
since the thousands place is a 3 which is lower than a 5
it would be rounded to 20,000
I agree with the guy above me :D
I think the equation is y=4x+10
