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 `x ` and `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 `y`” first, this just cuts down on the workload. Solving for `y` means isolating the `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 3, Lesson 5, page 136
More on Solving Equations
Solve equations by first getting all variables on the same side of the equation. Get rid of the paranthesis too (distributive property if required). Go slow and ONCE YOU HAVE YOUR ANSWER, PLUG IT BACK IN TO SEE IF IT WORKS, IF NOT, CHECK YOUR MATH FOR SIMPLE MATH OR SIGN ERRORS!
Follow these 4 steps:
- you should solve equations with parenthesis using the distributive property
- if there are like terms on one side of the equation, collect those first.
- add and subtract the constants
- finally, multiply or divide by the coefficient (next to the variable) to isolate the variable
Click here for some more examples. Don’t forget to try out Nutshellmathplus.com too!
Two of tonight’s homework problems solved by MrE are here! Just click it