Determine slope and intercept from an equation

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SWBAT determine the slope and y-intercept from any linear equation.

Big Idea

Y has been a very, very bad boy. :) Isolate him so that we can figure out the slope and intercept.


10 minutes

Each day, students complete a Warmup that usually consists of spiraling the previous day's material, in addition to older material.  Warm-up problems also sometimes extend lessons that students have encountered before to more unfamiliar contexts.

For a video narrative about how I structure each lesson, and how the warm-up fits in, click here.

I really like the warm-up problems today, because they push kids to apply their understanding to unfamiliar problems - in this case, focusing on matching the equivalent graphs and equations... I like to ask: "Which answer choice is wrong, and why?"  Kids then use reasoning about the positive or negative nature of the slope, as well as where the line crosses the y-axis, which enriches their understanding of multiple representations of linear functions.


10 minutes


15 minutes

The Homework contains 6 problems related to this lesson, as well as spiraled review.  I also give the kids the answers to the problems. 

Sometimes, the HW file is a take-home assessment.