Search over 10,000 free study notes

a) At A y=0, therefore if we solve: 0= (1/x)+1 we get x=-1.b)First step when drawing graphs is to find roots. x=0, x=2. Because x=0 acts as two of roots the graph only touches x=0. The graph is a positive...

25 x 2 = 50
15% = 0.15
50 x 1.15 = 57.5
or
0.15 x 50 = 7.5
50 + 7.5 = 57.5

1. Give the student an example question.e.g: past paper question from OCR (higher tier) paper 4 2017
   Each week Dan drives two routes, route x and route y.
   One week he drives route x three ti...

In the 1st year the car loses 25% of its value, meaning it retains 75% of its value. The starting value (100%) was £18000, so multiplying this by the 75% retained - remembering to change this to decimal n...

INT{2x⁵ + (1/4)x^-3 -5} = (2/6)x⁶ + (1/8)x^-2 -5x + c =(1/3)x⁶ + (1/8)x^-2 -5x + c