Accuracy.
By the substitution method By the elimination method By plotting them on a graph
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).
Explain the advantage and disadvantage of circle graph
A graph is a visual view of data; a table is the numerical view of data.
Depends on advantage compared to what. There may not be any advantage compared with representing data in graph form.
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.
You will obtain a more accurate answer than is possible using graphical methods. It's faster and less work than using a table.
By the substitution method By the elimination method By plotting them on a graph
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).
line graph
Explain the advantage and disadvantage of circle graph
The prime advantage is that you can show change or dependency between variables when using two (or more) dimensions rather than just a single magnitude.
A graph is a visual view of data; a table is the numerical view of data.
A pro for solving equations through graphing can allow one to visualize problems which can allow one to make better sense to the problem. However, fractions, and decimals can be very difficult to plot accurately. Furthermore, solutions could fall outside of the boundaries of a graph making them impossible to see with a graph. A pro for solving equations through either the methods of substitution and elimination allow one to achieve an exact answer regardless of fraction, decimal, or integer. However, by using these methods one will have a more difficult time with visualization without the use of a graph.
You use algebra and solve the system(s) of equations using techniques such as elimination or substitution.
Depends on advantage compared to what. There may not be any advantage compared with representing data in graph form.
The graph is the the actual picture that shows the resource allocation; the algorithm is the method used to produce that graph.