Edexcel GCSE higher tier Maths Paper 3 3H (1MA1) - 14th June 2023 [Exam Chat]

Some tips based on what's been on papers 1 and 2 and what students often forget to revise:

- Know how to use the capture-recapture method
- Know what an invariant point is when transforming shapes
- Know how to draw reciprocal, exponential and sin/cos/tan graphs
- Know the formulae for the volume of a cylinder and the volume of a pyramid. These will not be given to you in the exam
- Know the formula for density
- Know the formula for average speed
- Know how to expand triple brackets
- Know that once you've proved that two shapes are congruent, you can use the fact that all the sides/angles are the same (possibly in part b of a congruence question)
- Know that the median and interquartile range are the two most important things to compare when given two box plots. And know what it means if these values are higher/lower in one box plot compared to another.

can u explain the second and third point pls? i seriously dont remember them

Invariant points are simply points that don't change under a transformation. For example, if you have a square with corners at (0,0), (0,2), (2,0) and (2,2) and you rotate the square 180 degrees about the origin, (0,0) will be an invariant point because it doesn't change.

For the graphs it's best to revise them by checking your textbook or watching videos e.g. here:

https://www.youtube.com/watch?v=P11WAJoBCVY

what dyu guys think the last question will be about

is there likely to be loci or construction bc it wasnt on the other papers

My money is on a circle/tangent question.

Last was 5x^2-23x+50/9x^2-3x