The number of women in the workforce, based on data and projections from 1940 to 2040, can be modeled by a linear equation y = mx + c. The number was 19.4 million in 1940 and is projected to be 91.6 million in 2020. Let xrepresent the number of years after 1940 and y be the number of women in the workforce in millions  (a)What is the slope?                                                                                           (b) Using the value of the slope, write the equation to the line.

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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.