If you double my number, then add 2, divide by 20 and add -1, the result is 0. What's my number?
2 answers:
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Answer:
- (0, 0)
- (1, –1)
- (8, –2)
Step-by-step explanation:
We normally think of the ordered pairs as ...
(x, y) = (x, -∛x)
Another way to think about them is ...
(x, y) = (-y³, y)
I find it a little easier to think about the cube of a number, rather than its cube root.
For the y-values given, -2, -1, 0, 2, the points that will be on the graph are ...
(8, -2), (1, -1), (0, 0), (-8, 2)
The first three of these points are listed in your answer choices.
