write $850 flat fee for 31 to 50 guests in y = mx + b form

Answer 1

y = mx + b

$850 flat fee, guests between 31 and 50

Cost = C = mx + 850 where 31<x<50 with x = an integer and m= cost per guest

C = mx + 850

C = 31m + 850

C= 32m + 850

...

to

C = 50m + 850

cost measured on the y axis with $850 = the y intercept

m= the slope = cost per guest, measured in dollars

x axis measures number of guests