The slope of y=2x+1 is: 2. The parallel line needs to have the same slope of 2. We can solve it using the point-slope equation of a line: y â y1 = 2(x â x1) And then put in the point (5,4): y â 4 = 2(x â 5) And that answer is OK, but let's also put it in y = mx + b form: y â 4 = 2x â 10.
1 In-office teeth whitening treatments by a dentist can cost $300-$1,000 or more, but average about $500-$700.
Teeth whitening options vary in price and effectiveness. Laser treatments tend to be at the higher end of both ranges. Although the price will depend on your dentist and the discoloration of your teeth, you can expect to pay around $1,000 for the procedure. Looking at the time cost. If you are a busy person on the go, time costs are important to you. If something takes too much time, some people tend to move on to the next thing.