6a. Astronomers often measure large distances using astronomical units (AU) where 1AU is the average distance from Earth to the Sun. In the image, d represents the distance from a star to the Sun. Using a technique called "stellar parallax," astronomers determined e is 0.00001389 degrees. How far away is the star from the Sun in astronomical units? * NOT TO SCALE Sụn star Earth

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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.