15. This figure represents a greeting card whose shape when closed is the same as its shape when the card is opened flat. (hint: label the rectangle with the folded card's measurements) x in 4 in -8 in Find the width of the card, given that its length when opened is 8 inches. Your answer Insert a Math Equation « Previous Question Bookmark Next Question »

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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.