Question 213221This question is from textbook algebra1
: {(-2,-4),(-1,-1),(0,0)(1,-1),(2,-4)}
it ask to express each relation as a table, as a graph, and as a mapping diagram.
I don't know how to do that
like what exactly do you do
This question is from textbook algebra1
Answer by vleith(2983)   (Show Source):
You can put this solution on YOUR website! 1)As a table, make a table with 2 columns and 5 rows. Label the first column "x" and the second column "y". Then use the coordinates of the given points to fill in the table.
row 1 has -2 -4
row 2 has -1 -1
and so on
2) As a graph, lay down a standard Cartesian grid (like graph paper). Then plot the 5 given points. If you see a "curve" in thyat data, then sketch in the curve
3) As mapping diagram, draw an ellipse shaped like a "0", leave an inch of two of space and then draw a second one to the right of the first (same shape, same size).
Put all of the x values in the left ellipse (see column one from the table in part 1). Put all the y values in the right ellipse (see column two from the table above).
Now connect the x values in the left ellipse with the corresponding y values in the roght ellipse. Just draw a line from one to the other. That is the "map"
See this URL for an example --> http://img.sparknotes.com/figures/4/4d7924c96427a340a0f1be4c7e650f7c/mapping.gif
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