Date | May 2018 | Marks available | 2 | Reference code | 18M.1.SL.TZ2.S_5 |
Level | Standard Level | Paper | Paper 1 | Time zone | Time zone 2 |
Command term | Sketch | Question number | S_5 | Adapted from | N/A |
Question
The following diagram shows the graph of a function , for −4 ≤ x ≤ 2.
On the same axes, sketch the graph of .
Another function, , can be written in the form . The following diagram shows the graph of .
Write down the value of a and of b.
Markscheme
* This question is from an exam for a previous syllabus, and may contain minor differences in marking or structure.
A2 N2
[2 marks]
recognizing horizontal shift/translation of 1 unit (M1)
eg b = 1, moved 1 right
recognizing vertical stretch/dilation with scale factor 2 (M1)
eg a = 2, y ×(−2)
a = −2, b = −1 A1A1 N2N2
[4 marks]