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to find the first part we just need to plug in the value-7 in the expression for f replacing our independant value, x .f(-7)=(2*(-7)-7)/4 =(-14-7)/4 =-21/4to find the second part we need to interchange th...

First of all, once proteins reaches stomach, HCL (Hydrochloric acid) due to its high acidity partially denatures proteins and activates pensinogen (secreted by the gastric glands) into an enzyme pepsin. W...

When writing a GCSE ten marker it is crucial to consider the STRUCTURE, as this is key in helping you get full marks.For OCR GCSE three factors will be identified for you. For other boards, identify three...

Worrying about how to structure an essay and ensure it meets all AOs is a common GCSE worry. Putting your answer into a logical structure will help you meet all the criteria and also help your argument fl...

Parallel lines have the same gradient. The gradient of L1 is 4. For the gradient of L2: 3y=12x-4y=4x-4/3The gradient of L2 is also 4. Thus these lines are parallel.
Explanation 1.Rearrange th...