Distance to a Star The luminosity of a star is L = 5.8 X 1030W, and its brightness as viewed from the earth is B = 8.2 × 10-16 W/m². Find the distance of the star from the earth.

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A: It is given as the table which help us the calculation easily.

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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.