Write an equation to represent a function that matches the data
c:1 2 3 4 5
d:2.1 3.1 4.1 5.1 6.1
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The formula you are solving for is y = ax + b, where a is the slope and b is the intercept which passes through the points:

(1,2.1),... Attachments
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(1,2.1),... Attachments

help me...
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First make sure that there is linear relation between given data. For linear function (that is nothing but a straight line) we need only two points, say (x_1,y_1 ) and (x_2,y_2 ) then the formula is
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