The points ( – 1.9, 2.8) and (2.5, 7.64) are on the graph of a linear relationship between two variables, x and y. (2.5, 7.64 (-1.9,2 a. What is the constant rate of change of y with respect to x? Preview b. Write a formula that expresses y in terms of x. Preview c. What is the value of y when x = 109? y = Preview

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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.