Edexcel AS Level Maths May 15th 2025 Pure Paper 1 + Unofficial Mark Scheme

Usually a B. An A is typically 65-70% on an AS paper.

Do you think the grade boundaries will be lower for that paper?

What grade on stats and mechanics out of 60 would secure an A?

for 4b it needs to be in set notation {k:k>2-sqrt(7)}U{k:k<2+2sqrt(7)}

Since y is =k would they allow me if I had my y in set notation?

Do you think the grade boundaries will be lower for that paper?

As a person who did the AS exam last year, i dont think so😬. Ultimately it depends on how the rest of the country did. Last year it was lower than usual 60 for an A on p1

You had to plot the derivative function of the cubic curve they gave you. The curve you draw must cross the x axis at the points where the cubic has a minimum or maximum point, since the derivative is 0 at a min/max, which is why the derivative curve would be 0 there.
The gradient of the cubic starts positive so your curve needs to be above the x axis, then after the first maximum the gradient becomes negative so your curve needs to dip under the x axis and then come back up when the gradient of the curve becomes positive again.
So you just needed to draw a quadratic curve, the roots of that curve should be 0 (because there was a minimum at 0) and a negative root because there was a maximum on the negative x axis.
That’s why dy/dx = 3x^2+9x because that was the only option that has a solution at x=0 and x<0 (which is x=-3).

I drew it the same except mine had a negative y-intercept do u think ill still gain some marks

Yes both need to be true at once, that is EXACTLY why it is an intersection. I think you need to revise your set notation.
You are correct in what you’ve said, but clearly have unions and intersections confused.

Yes but you’ll lose one if it didn’t cross (0,0)

do u think ill get ecf marks for part b

No. It was a multiple choice question with no working required. You'll only get one mark if you got it right

it was 2 marks and said to state a reason

What would you say 65 out of 100 would be on this years paper?

Probably? Maybe around 63ish but definitely above the 60 mark

Would 65 be an A grade would you say?

Yeah it should be the highest it has been for an A is 65 but then obvsly gonna need to smash stats and mech to get an overall A

So are you saying if I have got 65/100. I should have got an A on the paper?