A-LevelMathematicsLogarithmic and exponential functionsOct/Nov 2017Paper 3 Q25 Marks
Two variable quantities x and y are believed to satisfy an equation of the form y = C(aˣ), where C and a are constants. An experiment produced four pairs of values of x and y. The table below gives the corresponding values of x and ln y. X 0.9 1.6 2.4 3.2 ln y 1.7 1.9 2.3 2.6 By plotting ln y against x for these four pairs of values and drawing a suitable straight line, estimate the values of C and a. Give your answers correct to 2 significant figures.
✓ Correct Answer
The correct answer is —. This question tests the candidate's understanding of logarithmic and exponential functions within the Mathematicssyllabus. The examiner's mark scheme requires...
📋 Examiner Report & Trap Analysis
Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
🔒
Unlock the Examiner's Answer
Sign up for free to reveal the correct answer, the official mark scheme breakdown, and the examiner trap analysis for this question.
Sign Up Free to Unlock →Join thousands of Cambridge students already using Oracle Prep