Can this question come up on Edexcel GCSE Mathematics A?

Hey,

Can this type of exponential graph question come up on Edexcel GCSE Maths A?

Hey,

Can this type of exponential graph question come up on Edexcel GCSE Maths A?

Unlikely but it has i think???

Ahh, I really want it to come up tho!

Hey,

Can this type of exponential graph question come up on Edexcel GCSE Maths A?

could you show the working out if you know the answer

could you show the working out if you know the answer

substituting values from the graph into the equation:
5 = p*q
320 = p*q^4

If you multiply the first equation by q^3 you will get the second equation.
Therefore, 320/5 = q^3
q^3 = 64

the cubed root of 64 is 4, so q = 4.

substituting this back into the first equation:

5 = p * 4
p = 1.25

You can then check these values with the second equation to make sure