Date | May 2022 | Marks available | 1 | Reference code | 22M.1.AHL.TZ2.3 |
Level | Additional Higher Level | Paper | Paper 1 (without calculator) | Time zone | Time zone 2 |
Command term | Solve and Hence | Question number | 3 | Adapted from | N/A |
Question
A function is defined by , where .
The graph of has a vertical asymptote and a horizontal asymptote.
Write down the equation of the vertical asymptote.
Write down the equation of the horizontal asymptote.
On the set of axes below, sketch the graph of .
On your sketch, clearly indicate the asymptotes and the position of any points of intersection with the axes.
Hence, solve the inequality .
Solve the inequality .
Markscheme
A1
[1 mark]
A1
[1 mark]
rational function shape with two branches in opposite quadrants, with two correctly positioned asymptotes and asymptotic behaviour shown A1
axes intercepts clearly shown at and A1A1
[3 marks]
A1
Note: Accept correct alternative correct notation, such as and .
[1 mark]
EITHER
attempts to sketch (M1)
OR
attempts to solve (M1)
Note: Award the (M1) if and are identified.
THEN
or A1
Note: Accept the use of a comma. Condone the use of ‘and’. Accept correct alternative notation.
[2 marks]