### Home > CCA2 > Chapter 1 > Lesson 1.1.2 > Problem 1-19

1-19.

Jill needs to cut a piece off of a 30-foot length of lumber. Create multiple representations (*x* → *y *table, graph, and equation) for the function with *x*-values that are the length of the piece Jill cuts off and *y*-values that are the length of the piece that is left over. Which representation best portrays the situation? Why? Explain. Homework Help ✎

Make a table.

What input and output values represent the length of the lumber before she cuts it?

Draw a graph. What is the slope?

What is the *y*-intercept? What is the equation?

Decide which representation best shows that when she cuts off a longer piece, the remaining piece is shorter,

and explain your reasoning.