Day 40 – October 17

Algebra: Chapter 7, Lesson 2, page 309.

Graphing Equations

We can graph an equation, by building a T-chart of values for both x and y. You can choose any values for ${\displaystyle x}$ and ${\displaystyle y}$ when making your T-chart. I like to use values like 0, 1, and 2. Make them easy and try to pick AT LEAST 3 points when graphing and equation. YOU MUST USE A RULER WHEN CONNECTING THE DOTS TOO!

Sometimes, it can be easier when building the T-chart to “solve for ${\displaystyle y}$” first, this just cuts down on the workload. Solving for ${\displaystyle y}$ means isolating the ${\displaystyle y}$ variable to one side of the equation and keeping the constants and ALL other variables on the other side.

Here are 2 good links from purplemath.com, the first about graphing in general (lesson 1) and the second about the T-charts and lesson 2!

Two of tonight’s homework problems solved by MrE are here! Just click it

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Algebra 1a: Chapter 2, Lesson 9, page 98.

Writing Equations

Plan to write and solve an equation by:

• Can I use a variable to represent an unknown number?
• Can I represent other conditions in terms of the variable?
• Can I find equivalent expressions?
• Can I write and solve an equation?

Remember too:

• UNDERSTAND the problem
• Develop and carry out a PLAN
• Find the ANSWER and CHECK

Two of tonight’s homework problems solved by MrE are here! Just click it!