Question

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

Answer 1

Start with y − 190 = 55(x − 2).

Expand the right side: y − 190 = 55x − 110.

Add 190 to both sides: y = 55x + 80.

So the correct equation is y = 55x + 80.