Slope-Intercept Form (Day 6)

Lesson Prep

Lesson Details

• Duration: 50 minutes

• Learning Goal: Reinforce and apply conceptual understanding of linear functions.

Prework

• Consider joining our free online workshop to explore 3 Act Math more in depth

• If possible, use big whiteboards and have each group member write with different colors

• Write pre-scripted questions for audience members to ask during presentations

Answer Keys

• Link to Answer Keys

Classwork

• Warm Up

• 3 Act Math - In-N-Out Burger (Robert Kaplinsky)

• Connection Handout

Standards

Common Core

• HSF.BF.A.1 – Write a function that describes a relationship between two quantities.

• HSF.IF.C.7 – Graph functions expressed symbolically and show key features of the graph, by hand in simple cases and using technology for more complicated cases.

• HSF.IF.C.7.A – Graph linear and quadratic functions and show intercepts, maxima, and minima.

TEKS

• A.2(B) – write linear equations in two variables in various forms, including y = mx + b, Ax + By = C, and y – y1 = m(x – x1), given one point and the slope and given two points

• A.2(C) – write linear equations in two variables given a table of values, a graph, and a verbal description

• A.3(C) – graph linear functions on the coordinate plane and identify key features, including x-intercept, y-intercept, zeros, and slope, in mathematical and real-world problems