Download 1.2 Linear Functions: A function whose graph is a straight line that is

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1.2 Linear Functions: A function whose graph is a straight line that is not vertical. Linear functions take the form f(x) = mx + b
X Intercept is where the function crosses the x axis. The point is in the form (a, 0) Y Intercept is where the function crosses the y axis. The point is in the form (0, b)
Slope is the rate of change or the steepness of a linear function. Slope is found by taking the change in y over change in x. Horizontal lines have zero slope. Their equation is in the form f(x) = 0x + b
or f(x) = b
Vertical lines have undefined slope. Their equation is in the form x = a
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x int = ( , ) y int = ( , ) b.
x int = ( , ) y int = ( , ) a.
x int = ( , ) y int = ( , ) b.
x int = ( , ) y int = ( , ) 2
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