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the function f is such that f(x)=(2x-7)/4. Fnd f(-7) and the inverse of the function.

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 the p...
EG
Answered by Emily G. • Maths tutor
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What is the process of protein digestion?

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. Whic...
EK
Answered by elena k. • Biology tutor
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How did the Tsar survive the 1905 Revolution? (10 marks)

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 ke...
EW
Answered by Emma W. • History tutor
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How do I structure essay paragraphs?

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 flow....
TD
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The equation of the line L1 is y=4x–8. The equation of the line L2 is 3y–12x+4=0. Show that L1 and L2 are parallel.

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 the equation to ma...
DP
Answered by Divya P. • Maths tutor
3959 Views