In order to write the equation for a piecewise linear function shown on a graph, what do you need to determine?

Question

the minimum and maximum values of z and y
the equation of each linear segment and the interval for which it is applied
the equation of each linear segment and its corresponding range
the equation of the single line segment over the domain of the function

Answer 1

To write the equation for a piecewise linear function shown on a graph, you need to determine the equation of each linear segment and the interval for which it is applied.

This involves identifying the slope and y-intercept (or using two points to find the equation) for each segment of the piecewise function and specifying the domain (intervals) over which each piece is valid.