Aplumber charges an initial amount to make a house call plus an hourly rate for the time he is working. a 1 hour job costs $90 and a 3 hour job costs $210. what is the initial amount and hourly rate that the plumber charges. show work.

Step-by-step explanation:

In this problem, we just have to find the linear relation that model this situation, where the rate would be the slope, and the initial amount would be the y-axis interception. So, basically we have to find the slope-intercept form of this linear relation.

First, we finds the slope using the two given points:

Now, using one point, the slope and the point-slope form, we have:

Therefore, the hourly ratio is $60 per hour, and the initial charge would be $30.

you should talk someone who owns the website about it. you did not deserve to have all that hard work and time taken away. id watch videos of little puppies to cool you down, and maybe some nacho cheese doritos.

you can use a^2+ b^2=c^2