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Q: When is it better to use substitution to solve a system of equations rather than graphing?
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What is the advantage of using the method of substitution rather than using a graph?

Accuracy.


How to graph quadratic function?

The general technique for graphing quadratics is the same as for graphing linear equations. However, since quadratics graph as curvy lines (called "parabolas"), rather than the straight lines generated by linear equations, there are some additional considerations.The most basic quadratic is y = x2. When you graphed straight lines, you only needed two points to graph your line, though you generally plotted three or more points just to be on the safe side. However, three points will almost certainly not be enough points for graphing a quadratic, at least not until you are very experienced. For example, suppose a student computes these three points:Then, based only on his experience with linear graphs, he tries to put a straight line through the points.


Where you get Maharastra SET question paper?

Benzene undergo substitution reaction rather than addition?


Why is it better to solve quadratic equations in the complex number system rather than in the real number system?

It is not always better.Although quadratic equations always have solutions in the complex system, complex solutions might not always make any sense. In such circumstances, sticking to the real number system makes more sense that trying to evaluate an impossible solution in the complex field.


When you use the substitution method how can you tell that a has an infinite number of solutions?

If the process of substituting leads to an identity rather than an equation then the system has infinitely many solutions.

Related questions

What is the disadvantage of using the substitution method in solving linear equations rather than the graph method?

There are no disadvantages. There are three main ways to solve linear equations which are: substitution, graphing, and elimination. The method that is most appropriate can be found by looking at the equation.


What is an advantage of using the method of substitution rather than using a graph or table to solve a system of linear equations?

You will obtain a more accurate answer than is possible using graphical methods. It's faster and less work than using a table.


What is the advantage of using the method of substitution rather than using a graph?

Accuracy.


Why are molecular equations referred to as molecular even if no molecular substances are involved?

The overwhelming majority of chemical equations do involve molecules, but if they don't, you can call them chemical equations rather than molecular equations.


Where you get Maharastra SET question paper?

Benzene undergo substitution reaction rather than addition?


How to graph quadratic function?

The general technique for graphing quadratics is the same as for graphing linear equations. However, since quadratics graph as curvy lines (called "parabolas"), rather than the straight lines generated by linear equations, there are some additional considerations.The most basic quadratic is y = x2. When you graphed straight lines, you only needed two points to graph your line, though you generally plotted three or more points just to be on the safe side. However, three points will almost certainly not be enough points for graphing a quadratic, at least not until you are very experienced. For example, suppose a student computes these three points:Then, based only on his experience with linear graphs, he tries to put a straight line through the points.


What term is defined as buying a lower-priced product rather than a more expensive product?

I cannot see the terms, but it may be purchasing power.


What is defined as buying a lower-priced product rather than a more expensive product?

Substitution effect


How entrepreneurship leads to import substitution and utilization of local resources?

Explain how entrepreneurship can lead to import substitution and utilization of resources


How can ecological competition be modeled?

Competition also can be modeled by examining resources rather than population growth equations.


5 What advantage is there to using algebraic equations instead of numerical values when defining the dimensions of a CAD model?

Dimensions can be more accurately calculated when using algabreic equations rather than numerical values.


Why is it better to solve quadratic equations in the complex number system rather than in the real number system?

It is not always better.Although quadratic equations always have solutions in the complex system, complex solutions might not always make any sense. In such circumstances, sticking to the real number system makes more sense that trying to evaluate an impossible solution in the complex field.