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What is 1 + 3?
College Algebra 1.3
3rd Edition Beecher, Penna, Bittinger
A function f is a linear function if it can be written as f(x) = mx + b, where m and b are constants.
If m = 0, the function is a constant function f(x) = b.
If m = 1 and b = 0, the function is the identity function f(x) = x.
The slope m of a line containing the points (x1, y1) and (x2, y2) is given by
=the change in y/the change in x