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Date	May 2017	Marks available	2	Reference code	17M.2.sl.TZ1.3
Level	SL only	Paper	2	Time zone	TZ1
Command term	Find	Question number	3	Adapted from	N/A

Question

Consider the graph of $f(x) = \frac{{{{\text{e}}^x}}}{{5x - 10}} + 3$, for $x \ne 2$.

Find the $y$-intercept.

[2]

Find the equation of the vertical asymptote.

[2]

Find the minimum value of $f(x)$ for $x > 2$.

[2]

Markscheme

valid approach (M1)

eg$\,\,\,\,\,$$f(0)$, M17/5/MATME/SP2/ENG/TZ1/03.a/M

$y$-intercept is 2.9 A1 N2

[2 marks]

valid approach involving equation or inequality (M1)

eg$\,\,\,\,\,$$5x - 10 = 0,{\text{ }}2,{\text{ }}x \ne 2$

$x = 2$ (must be an equation) A1 N2

[2 marks]

7.01710

${\text{min value}} = 7.02$ A2 N2

Note: If candidate gives the minimum point as their final answer, award A1 for $(3,{\text{ }}7.02)$.

[2 marks]

Examiners report

[N/A]

Syllabus sections

Topic 2 - Functions and equations » 2.2

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17N.1.sl.TZ0.3b.ii: Write down ${f^{ - 1}}(2)$.
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10M.2.sl.TZ2.5a: On the diagram above, sketch the graph of g.
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16M.1.sl.TZ2.1b: Write down the value of $a$ and of $b$.
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17N.1.sl.TZ0.3b.i: Write down $f(2)$;

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