Date | May 2019 | Marks available | 1 | Reference code | 19M.1.SL.TZ2.S_4 |
Level | Standard Level | Paper | Paper 1 | Time zone | Time zone 2 |
Command term | Find | Question number | S_4 | Adapted from | N/A |
Question
The following diagram shows part of the graph of f with x-intercept (5, 0) and y-intercept (0, 8).
Find the y-intercept of the graph of f(x)+3.
Find the y-intercept of the graph of f(4x).
Find the x-intercept of the graph of f(2x).
Describe the transformation f(x+1).
Markscheme
y-intercept is 11 (accept (0, 11) ) A1 N1
[1 mark]
valid approach (M1)
eg f(4×0)=f(0), recognizing stretch of 14 in x-direction
y-intercept is 8 (accept (0, 8) ) A1 N2
[2 marks]
x-intercept is 52(=2.5) (accept (52,0) or (2.5, 0) ) A2 N2
[2 marks]
correct name, correct magnitude and direction A1A1 N2
eg name: translation, (horizontal) shift (do not accept move)
eg magnitude and direction: 1 unit to the left, (−10), horizontal by –1
[2 marks]