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8th Grade Math - Trend Lines

Updated: Oct 30, 2025

This post explains and gives practice opportunities related to TEKS 8.5D:

use a trend line that approximates the linear relationship between bivariate sets of data to make predictions

Instruction

Students learn that trend lines can be used to approximate the linear or non-linear relationship of scatterplot data.

STAAR Practice

Between 2016 and 2025 (including redesign practice), this readiness standard has been tested 21 times on the STAAR test. Videos explaining the problems can be found below. If you'd rather take a quiz over these questions, click here. The videos below are linked to the questions in the quiz as answer explanations after the quiz is submitted.

To view all the posts in this 8th grade TEKS review series, click here.

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