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MissTica
3 years ago
7

4(x+x+7)-2x+7-4 by substituting x=1 and x=2

Mathematics
2 answers:
9966 [12]3 years ago
8 0
4(x+x+7)-2x+7-4
Substitute x with 1
4(1+1+7)-2(1)+7-4
=4(2+7)-2+7-4
=4(9)-2+7-4
=36-2+7-4
=34+7-4
=41-7
=34

4(x+x+7)-2x+7-4
Substitute x with 2
4(2+2+7)-2(2)+7-4
=4(4+7)-4+7-4
=4(11)-4+7-4
=44-4+7-4
=40+7-4
=47-4
=43. Hope it help!
yuradex [85]3 years ago
5 0
4(x+x+7) x=1
4(1+1+7)
4+4+28 = 36

(-2x+7-4) x=2
-2(2)+7-4
-4+7-4 = -1

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<h3>Equation of a line</h3>

A line is the distance between two points. The equation of a line in point-slope form is given as y =mx + b

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Using the coordinate points on the line (3, 5000) and (9, 20000)

Get the slope

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b = 5000 - 7500
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Determine the equation

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Hence the equation most closely models the line of best fit for the scatter plot is y = 2.5x

Learn more on line plot here: brainly.com/question/8989301

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Step-by-step explanation:

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Step-by-step explanation:

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So, |x + y| is then substituted with the numbers given for the variables.

|x + y|

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