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Solve y=x^2 - 1, y=5 - x

x= -3, y= 8 and x= 2, y= 3 (1) 5 - x = x^2 - 1(2) x^2 + x - 6 = 0(3) (x+3)(x-2) = 0(4) when x = -3, y= 5 - (-3) = 8(5) when x = 2, y= 5 -(2) = 3
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Answered by Tamim B. • Maths tutor
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Explain the multi-store memory model

The multi-store memory model is a cognitive model which was designed by Atkinson and Shifrin (1968) which conceptualises the different stores of memory. It begins with the sensory store, which includes both ...
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Answered by Ellen P. • Psychology tutor
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"It is a test [that] genuine poetry can communicate before it is understood." - T. S. Eliot. Discuss this with reference to at least two poets you have studied.

This would be an example of a typical English Literature IB Higher Level Paper 2 essay question.The student should introduce their essay by analysing the quotation, perhaps considering the difference between...
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Answered by Iona R. • English tutor
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Explore The Ways In Which Education Is Presented In D.H. Lawrence's "A Snowy Day In School"

In exam conditions the poem should be analysed first through the vectors of form and content. Form asks questions about cadence, rhythm, timbre - in this discussion we should find the sibilance (which is fre...
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Why does hydrogen bonding occur in water?

Hydrogen bonding results from the great difference in electronegativity between oxygen and hydrogen. Electronegativity is the ability of an atom to pull electrons towards itself in a covalent bond. As oxygen...
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Answered by Myles O. • Chemistry tutor
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