Then they write an explanation of how they found the cost. Students look for a pattern between the temperature in degrees Fahrenheit and degrees Celsius and write an explanation of that relationship. Understand and describe the general behavior of functions. As a regular assessment exercise, students fill in Function Machine tables like those shown below. Sometimes they are given the rule and sometimes they are asked to find the rule.
Students investigate graphs without numbers.
For example, they may study a graph that shows how far Yasmin has walked on a trip from home to her friend's house and back, where time is shown on the horizontal axis and the distance covered is on the vertical axis. Students tell a story about her trip, noting that where the graph is horizontal, she has stopped for some reason. Use patterns, relationships, and linear functions to model situations in mathematics and in other areas. Students start with a single equilateral triangle with side of length 1 and find its perimeter. Then they add a second such triangle, matching sides exactly, to make a train or a wall and find its perimeter.