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# Chapter 6 polynomials question help watch

1. I forgot how to find the unknown coordinates could anyone explain how to do this
2. (Original post by βradley)
I forgot how to find the unknown coordinates could anyone explain how to do this
Its the circled question that I can't remember how to do.
3. The point x = 0, y = k is on the curve, so those values must satisfy the equation of the curve.
4. the point is (0,k). To find the y value, substitute the value of x into the equation.
It is a 'state' question so it should not really require much/any working.

It's basically saying, "when x = 0, what is y?"
5. (Original post by surina16)
the point is (0,k). To find the y value, substitute the value of x into the equation of the circle.
That's a cubic polynomial...
6. (Original post by RogerOxon)
The point x = 0, y = k is on the curve, so those values must satisfy the equation of the curve.
(Original post by surina16)
the point is (0,k). To find the y value, substitute the value of x into the equation of the circle.
It is a 'state' question so it should not really require much/any working.

It's basically saying, "when x = 0, what is y?"
Thanks im gonna have another try and this thanks for the pointers really appreciated 👍🏼
7. (Original post by RDKGames)
That's a cubic polynomial...
sorry i said circle because i was doing maths questions at the same time (which involved circles)
8. (Original post by βradley)

Its the circled question that I can't remember how to do.
the question is asking you what the y intercept of what the equation is, i.e. the number at the last bit which is -12.
Another way of looking at the question is to substitute the value of 0 into the equation which also gives -12.
SIMPLE
9. (Original post by ibk1998)
the question is asking you what the y intercept of what the equation is, i.e. the number at the last bit which is -12.
Another way of looking at the question is to substitute the value of 0 into the equation which also gives -12.
SIMPLE
Thank you

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