@mathstudent55
Which relation is represented by the arrow diagram? {(3, –2), (3, 0), (1, 1), (4, 3), (6, 4)} {(–2, 3), (0, 3), (1, 1), (3, 4), (4, 6)} {(–2, 1), (0, 3), (1, 3), (3, 4), (4, 6)} {(3, –2), (3, 0), (1, 1), (3, 4), (4, 6)}
@mathstudent55
@mathstudent55
Look in the diagram. What is the first number on the left side with an arrow pointing to a number on the right side?
-2
By "first" I mean start from the top.
Good. What number does -2 point to with the arrow?
3
|dw:1445533734284:dw|
Each number on the left side is an x-coordinate. The number it points to on the right side is the y-coordinate.
Next down you have 0. What does 0 point to?
|dw:1445533893402:dw|
3
ok
0 also points to 3, so that means point (0, 3)
Now we have (-2, 3), (0, 3) Keep on doing this to every point in the left set and write a list of all ordered pairs. Then compare your list with the choices.
(-2,3),(0,3),(1,1),(3,4),(4,6)
Exactly. Which choice has those ordered pairs?
B They are in order like I had writen it down
Is that right?
@mathstudent55
Hey
@mathstudent55
Yes, it's B. The order really does not matter. What matters is that you have the same ordered pairs.
Which relation is displayed in the graph? {(–3, –1), (2, 2), (0, 1), (1, 3) (–2, 4)} {(–3, –1), (–2, 2), (1, 0), (3, 1) (4, –2)} {(–3, –1), (2, –2), (1, 0), (3, 1) (4, –2)} {(–1, 3), (–2, –2), (0, 1), (3, 1) (4, 2)}
@mathstudent55
@mathstudent55
????
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