What is the equation of this line in slope-intercept form? (-1,5) (1,-1) y = 3x - 2

y = -1/3x + 2

y = -3x + 2

y = 3x + 2

Ineed big ! the cost of a school banquet is $25 plus $15 for each person attending. create a table, sketch the graph, and write an equation in slope-intercept and point-slope form that gives total cost as a function of the number of people attending. what is the cost for 77 people?