Mrs. Hernandez owns a computer training business. She charges a lab fee plus an hourly fee to train office workers on various software programs. It costs $265.00 to attend a 6-hour course and $345.00 for an 8-hour course. Which equation relates x, the number of hours in the course, and y, the cost?

Answer 1

y=ax+b

8a+b = 345
6a+b = 265
2a = 80
a=40
b=25

y = 40x+25