(-4) + 8 = 4
(-----------------)
Answer:
add 5 + 4, which is 9 and that's 81 dots
The residual value when x = 4 is 6.72 if the line of best fit to be y = 2.78x – 4.4
<h3>What is an
equation?</h3>
An equation is an expression that shows the relationship between two or more number and variables.
Given the function:
y = 2.78x - 4.4
When x = 4:
y = 2.78(4) - 4.4 = 6.72
The residual value when x = 4 is 6.72 if the line of best fit to be y = 2.78x – 4.4
Find out more on equation at: brainly.com/question/2972832
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Answer:
1 gallon of paint will paint 400 ft² of the wall
Unit rate = 400 ft² per gallon
Step-by-step explanation:
From the graph, when 1 gallon of paint was used, (x = 1), an area of 400 ft² of the wall was painted (y = 400).
Unit rate = y/x. That is, the amount of square feet of wall that would be painted using 1 gallon of paint.
Unit rate = 400 ft²/1 gallon = 400 ft²/gallon.
