Graphing Solutions to Equations and Inequalities

Topics for Today:

Today we started a unit on graphing by discussing what a graph is, and also the difference between solutions of an equation and solutions of an inequality.  We also solved simple inequalities using addition and subtraction.

Our graphing focused on number lines.  We will be working with the coordinate system (all four quadrants) in the upcoming days.  

Vocabulary:

coordinate, graph, inequality, solution of an inequality

Sections Covered in Textbook:

2-8: Graphing and Writing Inequalities (pages 107-111)

Resources & Tutorials:

1) What is an inequality?

2) How do you write an inequality from a number line graph?

3) How do you solve an inequality using subtraction?

4) Graphing Solutions to Equations and Inequalities Class notes

Scale and Scale Drawings

Topics for Today:

Today we worked on scale drawings.  A scale drawing is an enlarged or reduced drawing of an object that is similar (in proportion to) the actual object.  Maps and floor plans are examples of scale drawings.  

image credit: https://windexchange.energy.gov/maps-data/128

Vocabulary:

scale, scale drawing

Sections Covered in Textbook:

5-7: Maps and Scale Drawings (pages 275-281)

Resources & Tutorials:

1)  What is a scale drawing?

2)  Scale Drawing and Scale Factor Class notes