The point P (4, 16) lies on the function of f(x) = 8x – x². If Q is the point (x, 8x – x²) , graph the function f(x) and the secant lines PQ passing through P (4, 16) for each value of x below. Also find the slope for each value. Only a simplified fraction will be accepted. If æ = 5 , the slope of PQ is: If e = 4.5 , the slope of PQ is: If e = 3.5 , the slope of PQ is: Graph 21+ 20- 19 18- 17- 16 15 14- 13 12 -5 -4 -3 -2 -1 I 2 3 4 5 6 7 8 9 10 11 12 13

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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.