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Peter is an artist, and he charges for his paintings on an hourly basis. He also receives
tips from many of his clients. The scatter plot below shows the number of hours Peter
worked on a painting and the amount of money he received from his client. A line of
best fit for these data points, the equation y=85x+20, is also shown on the plot.
Amount Paid vs. Hours Worked
300+
400+
300+
Amount Paid (dollars
200+
100+
S
6
3 4
Hours Worked
On average, how many more dollars does a client pay for a painting that takes 4 hours
than a painting that takes 3 hours?

Peter is an artist and he charges for his paintings on an hourly basis He also receives tips from many of his clients The scatter plot below shows the number of class=

Respuesta :

reinhard10158

Step-by-step explanation:

since the function of the average value is the given line equation, the price for the result of 4 hours or 3 hours work is simply using 4 or 3 in the place of x and then calculate.

but we see already : the only variable part in the calculation is the term 85x.

and the difference of value between x=4 and x=3 is

85×4 - 85×3 = $85

so, the client pays on average $85 more.