Find the slope-intercept forms of the linear functions with the given properties. Note: For the slopes and the intercepts, enter either fractions (rational numbers) or decimal expressions with at least 5 decimal places. (a) Graph of the function passes through the points (-1, -7) and ( 7, 0). Answer: f(x) = (b) Graph of the function passes through the point (-6, 9 ) and has slope -2. Answer: f(x) =

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