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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
5052 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
2706 Views

Write a speech for a Leavers’ Assembly, persuading students that they too can make a big success of their futures.

To answer this question, I'd suggest you to focus on persuasion . The question is assessing your ability to adapt your language to fit a specific context, so you need to demonstrate your understanding of usi...
IK
Answered by Isabel K. • English tutor
3643 Views

How does column chromatography work? (A-Level Chemistry)

We use column chromatography to purify an organic product. We begin with a glass column filled with a slurry of absorbent material. This could be aluminium oxide coated with water.We run a solvent through th...
NM
Answered by Noa M. • Chemistry tutor
2862 Views

Solve by factorisation. 2x(^2)+5x-12=0

To factorise and solve for x, open two sets of brackets, i.e: (x )(x ). For this question note than one x should be replaced by 2x such that (2x )(x ). List the pairs of numbers that give a product of 12, i....
EW
Answered by Emily W. • Maths tutor
10213 Views