### Home > INT3 > Chapter Ch1 > Lesson 1.1.2 > Problem 1-18

1-18.

Terri’s project for the Math Fair is a magnificent black box that she called a function machine. If you put

What would her machine do to an input of

? What about ? What about ? Making an input → output table may help.Look for a pattern.

Try making a table and graphing the points.

If the input is

, what is the output?Write an equation for Terri's machine.