7) The average value of collectible gold coins was $3,120 in 2000 and appreciated to $9,340 in 2020. Let y be the average value of a coin in the year x, where x = 0 represents 2000. Write a linear equation that models the value of a coin in terms of the year x.

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Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.