A computer technician charges a flat rate for home visits plus $ 55 per hour. The technician bills $190 for a 2-hour home visit to install a new hard drive. The equation y − 190 = 55(x − 2) gives the total amount y the technician charges for x hours of work. What is the equation in slope-intercept form?

y = 55x + 190
y = 55x + 80

y = 190x + 55

y = 2x + 55
What does the y-intercept in this equation represent?
the rate of change
the total cost
the flat rate
If the technician charged $327.50, then the technician worked
hours.