8.5D Trend Lines That Approximate Linear Relationships Scatterplots with Trend Lines can also be used for Worksheet, Classwork, Homework, Prep Material! Includes 12 problems of different learning levels to understand how to solve Bivariate Data. The problems are mirrored to the state assessment. Students will see and understand the wording used for state assessments. Easy to use, Easy to understand and Easy to Grade. Students are able to work with the following: - Trend Lines - Best Predictions