SOLUTION: How to work out the table to plot it on the graph

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Question 437745: How to work out the table to plot it on the graph
Found 2 solutions by MathLover1, richard1234:
Answer by MathLover1(20855) About Me  (Show Source):
You can put this solution on YOUR website!

THE STEPS FOR PLOTTING POINTS ON A GRAPH.
1. Make sure that you have two variables (for ex. x and y)to work with (two columns
of data).x|y).
2. the variable x is going to be represented on the x-axis+
and the variable y will be on the y-axis
3. Label the axes on your plot and determine the appropriate scale (if
the graph is not already labeled).
4. Begin by plotting the first two pairs of numbers (x,y) (the top row of
numbers).
a. First, find the value for x on the x-axis.
b. Next, find the y-value on the y-axis.
c. Your point should be plotted at the intersection of the x-value
and the y-value. (Draw one line vertically up from the x-value
and another line horizontally from the y-value, where they cross
is where you should put your point (x,y))
d. Finally, plot the point on your graph at the appropriate spot.
5. Continue to plot pairs of points from the table (in rows) until you
have plotted all the points. (in case you have to plot a graph of linear function, you will need only 2 points because a line is defined with 2 points)
6. Your final graph should have the same number of points as pairs
of data in your table.


Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
To plot a graph, first know what your input and output values are (usually x and y, but not necessarily).

Next, pick a set of x-values that make the function easy to evaluate. For example, if you are doing y+=+3x+%2B+5, you might pick x-values such as -2, -1, 0, 1, and 2. If you are doing a trigonometric function, picking values such as pi%2F4, pi%2F6, etc. can work.

Also, make sure you have picked enough points. If you know your equation is linear, two points is sufficient. However, you will need more points to graph other functions, including trigonometric and higher-order polynomial functions.