The image shows the following (using the appropriate fonts, where the equations are aligned on the equals sign, and the equation numbers are by the right margin):

The function f(x) is given in Equation (9.4) and its derivative f'(x) is given in Equation (9.5).
f(x) = 2 x + 1 (9.4)
f'(x) = 2 (9.5)

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