A-LevelMathematicsLogarithmic and exponential functions9709/32 · Feb/Mar 2023 · Q13 Marks
It is given that x = ln(2y – 3) – ln(y + 4). Express y in terms of x.
- It is given that x = ln(2y – 3) – ln(y + 4). Express y in terms of x.[3]
Mark scheme
Marking points from the official mark scheme (Feb/Mar 2023). The mark or mark type is shown in brackets.
- [M1] Use law of the logarithm of a quotient or express x as ln ex
- [A1] Remove logarithms and obtain a correct equation e.g. ex = 2y-3/y+4
- [A1] Obtain answer y = 3+4ex/2-ex OE ISW
Write your answer and get it marked
On Oracle Prep you can write or photograph your own answer and have it marked by AI against this mark scheme, with feedback on what you missed.
Sign up free →