I usually get side tracked when trying to go through past papers and post all the answers online – sometimes it’s just a pain to write fractions and powers etc. on the wordpress editor. However I will do my best and hopefully this will be useful to you.

Question 1:

Which of these is the equation of a straight line?

Circle your answer.

[1 mark]

`\[y\ =\ 6x^{2\ \ }\ \ \ \ \ y\ =\ x\ -\ 6\ \ \ \ \ \ \ \ y\ =\ x^{2\ }+\ 6\ \ \ \ \ y\ =\ \frac{6}{x}\]`

This question is testing whether or not you know your common graphs. If you are using the CGP AQA Maths textbook, this is pages

This question is testing whether or not you know your common graphs. If you are using the CGP AQA Maths textbook, this is Section 15 – Straight Line Graphs and Section 16 – Other Types of Graph, pages 194 to 212. Please do the questions from that section if you struggle with questions like this.

You can also read my previous blog post for a quick overview of graphs you should know for GCSE Maths.

Looking at the choices, any graphs with any powers of x and/or fractions are not going to be a straight line.

That leaves us with option which is the second option: y = x – 6.

If you do ever get stuck on a one mark question, leave it and come back to it at the end when your brain has warmed up.

With this one you could always do a quick sketch for each graph by making up some coordinates, but only do that when you’ve finished and checked the rest of the paper as its only one mark ðŸ™‚

Question 2: What is 0.28 as a fraction of 0.8.

Circle your answer.

`\[\frac{7}{20}\ \ \ \ \ \frac{2}{7}\ \ \ \ \frac{20}{7}\ \ \ \ \frac{7}{2}\]`

Hmmm, they are being tricksy here.

Change them both into whole numbers by multiplying both by 100.

This gives 28 and 80. So the fraction is

`\[\frac{28}{80}\ which\ is\ much\ nicer\ and\ simplifies\ down\ to\ \frac{7}{20}\]`

There are lots of things that could confuse you here, especially if you are feeling stressed out at the start of the exam.

It also looks like it should be a top heavy fraction.

Be careful with questions like this.

Question 3:

Circle the Calculation that increases 240 by 7.5%

240 Ã— 1.0705 240 Ã— 1.705 240 Ã— 1.075 240 Ã— 1.75

This is testing your knowledge of changing percentages into decimals as well as percentage increase.

7.5% as a decimal is 0.075 you need to add this to 1 for an increase multiplier, which the correct answer 1.075.

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