Essential Question How can you describe a function that is represented by more than one equation? 4 20 ISTRUCTING BLE BUMENTS proficient in math, need to justify your usions and municate them EXPLORATION 1 Writing Equations for a function Work with a partner. a. Does the graph represent y as a function of x? Justify your conclusion. b. What is the value of the function when x = 0? How can you tell? c. Write an equation that represents the values of the function when x S 0. f(x) = . if x so -2 d. Write an equation that represents the values of the function when x > 0. f(x) = if x > 0 e. Combine the results of parts (c) and (d) to write a single description of the function. if so if x > 0 6 4 -2 2 4 6 x 4 hers. 6 EXPLORATION 2 Writing Equations for a Function Work with a partner. a. Does the graph represent y as a function