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P has coordinates (3,4), Q has coordinate (a,b), a line perpendicular to PQ has equation 3x+2y=7. Find an expression for b in terms of a

Rearrange the equation of the line perpendicular to PQ to give y = -(3/2)x + 7/2. Gradient of this line = -3/2Using the knowledge that the gradients of a line perpendicular to another line is related by a fa...
JL
Answered by Jack L. • Maths tutor
5135 Views

When a vaccine is given to a person, it leads to the production of antibodies against a disease-causing organism. Describe how. (5 marks)

With these 5 and 6 mark questions, one of the main skills required is being able to describe the process in sufficient detail, without wasting time with unnecessary information. For example in this question,...
TR
Answered by Thomas R. • Biology tutor
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'Commonly, texts about husbands and wives present a violent story.' In respect to this, examine how Shakespeare portrays the dynamic between Othello and Desdemona in a given extract and elsewhere in the play.

The violence of marriage is seen through Othello’s conflicted mindset as he clearly still holds affection for Desdemona. He prolongs finally murdering her by interrogation as to whether she has prayed, and a...
SM
Answered by Scarlett M. • English tutor
2792 Views

I keep losing marks on my essay answers because of how I use context. How can I fix this?

Use of context is a very common thing to find tricky when responding to an essay question. It can often feel like you're "tagging on" extra information just for the sake of hitting all of the Asses...
KR
Answered by Katie R. • English tutor
2769 Views

Outline the functions of axial and appendicular skeletons

The appendicular skeleton provides attachment for muscles which allows for and supports movement. An example of a bone in the appendicular skeleton is the femur. The main function of bones in the axial skele...
NG
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