1. Linear function refers to 2 distinct but related notions. Linear function is a function whose graph is a straight line, that is a polynomial function of degree zero or one.
2. a.) Point-slope form
b.) Standard form
c.) Slope-intercept form
3. Linear equations produce straight lines when graphed, not all linear equations produce linear functions. Linear functions must be both linear (a straight line) & a function (matching each x-value to only one y-value) in a graph.
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