In order to write equation for peicewise linear function on graph, what do you need to determine?

Question

which answer is correct?:
1. the equation of each linear segment and its corresponding range
2. the minimum and maximum vaules of x and y
3. the equation of the single line segment over the domain of the function
4. the equation of each linear segment and the interval for which it applied

Answer 1

To write an equation for a piecewise linear function, the correct answer is:

4. the equation of each linear segment and the interval for which it applies.

This is because a piecewise linear function consists of multiple linear segments, each defined by its own equation, and you need to specify the intervals on the x-axis over which each of these segments is valid.