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First solve for the exact point on the line by substituting 5 into the original equation. You should get y=+-4. Now implicitly differentiate the equation: 4x-6y(dy/dx)=0. Rearranging this will yiel...
When answering a source based question, you need to focus on the 5W's. By answering each of them, you will address each of the problems of a source based question.
5Ws: WHO / WHAT...
We know in a quadratic x^2 +bx + c = 0, -b/a = α + β and c/a = αβ.
Therefore, α + β = -(-2k) = 2k, and αβ = k - 1. (Both are divided by the coefficient in front of x which is 1 so can be ignored.<...
The Subjunctive is one of the hardest ideas in Spanish, simply because it is not commonly used in English! The easiest way I find to remember it is to think of WEIRDO!
Wishes- eg when using de...
Through international trade resource-rich economies in sub-Sahara Africa will be able to increase their exports; since exports are a component of Aggregate Demand, this will increase AD. Higher AD will in...
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