Chromium Estimated Population At Risk At Identified Sites: 7.3 Million People. Estimated Global Impact: 13 to 17 Million People. Introduction. Chromium is a naturally occurring heavy metal that is commonly used in industrial processes and can cause severe health effects in humans. Although it can be released through natural forces, the majority of the environmental releases of chromium are from industrial sources.
Linear Functions: Any function of the form f (x) = m x + b, where m is not equal to 0 is called a linear function. The domain of this function is the set of all real numbers. The range of f is the set of all real numbers. The graph of f is a line with slope m and y intercept b. Note: A function f (x) = b, where b is a constant real number is called a constant function. Its graph is a horizontal line at y = b. You need only two points to graph a linear function. These points may be chosen as the x and y intercepts of the graph for example.
Linear equations graph as a straight line using the slope intercept form of y = mx + b, where m is the slope and b is the y-intercept, or point where the line crosses the y-axis.