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A graph can help you understand equations better its a little way of getting used to a a problem. I used a multiplication graph when i was 10 it helped me memorize the problem.

Q: Why use graphing to solve a system of equations?

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A graphing calculator is used to plot graphs and solve equations. Most graphing calculators are programmable so one can create customized programs.

True. To solve a three variable system of equations you can use a combination of the elimination and substitution methods.

To solve linear equations, you always use the inverse operations

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2x+7y=29 x=37-8y

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This looks like a question from a Virtual School course - please ask you teacher for help and use the examples in the lesson.

Graph the equation then find the x intercepts.

Substitution is a way to solve without graphing, and sometimes there are equations that are impossible or very difficult to graph that are easier to just substitute. Mostly though, it is a way to solve if you have no calculator or cannot use one (for a test or worksheet).

A graphing calculator is used to plot graphs and solve equations. Most graphing calculators are programmable so one can create customized programs.

True. To solve a three variable system of equations you can use a combination of the elimination and substitution methods.

Use the substitution method to solve the system of equations. Enter your answer as an ordered pair.y = 2x + 5 x = 1

There are 5 ways to solve a system. The most popular is to write both in standard notation then add the equations together. The easiest to explain is to use substitution. Solve one for one of the variables then substitute in the other equation. The other ways to solve are to use graphing and find the intersection. Determinants and matrices are the other two ways.

2x + 2y = 44x + y = 1There are many methods you can use to solve this system of equations (graphing, elimination, substitution, matrices)...but no matter what method you use, you should get x = -1/3 and y = 7/3.

coordinate geometry or algebra is used to solve equations

You can use a graph to solve systems of equations by plotting the two equations to see where they intersect

There are people who use this web site that can and will solve equations.

There are several methods. 1. graphing, then find the intersection. 2. Substitution (take one equation and solve for one variable, substitute that into the 2nd equation) 3. Elimination. Arrange both equations in standard form, arrange so that the coefficients on one of the variables are the same and subtract the 2 equations. 4. Cramer's rule, use matrices to solve.