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basic algebra and arithmetic "marathon". (2 Viewers)

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hscishard

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AAEldar said:
Well we've done Simultaneous Equations, but I wouldn't know how to do it just from getting the coordinates haha.
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I'd say this question may come up in the "Quadratic Polynomial" section.
You just had to know that all parabolas are in the form of: y= ax^2 + bx + c.
Therefore all you need to do is find the values of a b and c. You sub in the x and y values, which should leave 3 different a, b and c equations. (there are 3 coodinate points to sub in).

Then you solve the simultaenous equations. (3 pronumerals, 3 equations).
 
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AAEldar

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hscishard said:
I'd say this question may come up in the "Quadratic Polynomial" section.
You just had to know that all parabolas are in the form of: y= ax^2 + bx + c.
Therefore all you need to do is find the values of a b and c. You sub in the x and y values, which should leave 3 different a, b and c equations. (there are 3 coodinate points to sub in).

Then you solve the simultaenous equations. (3 pronumerals, 3 equations).
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Ah ok then, not as hard as I thought it was then. Cheers for that :)
 
ohexploitable

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hscishard said:
That's not 2 unit.

This thread is very limited. We need a thread where you can post any topics. Like a year 11 thread lol.
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This thread is 3 unit and used to be in the "General Discussion on the Preliminary HSC" section but a moderator moved it here.
 
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