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Date May Specimen Marks available 2 Reference code SPM.1.sl.TZ0.7
Level SL only Paper 1 Time zone TZ0
Command term Draw Question number 7 Adapted from N/A

Question

On the grid below sketch the graph of the function \(f(x) = 2{(1.6)^x}\) for the domain \(0 \leqslant x \leqslant 3\) .

[2]
a.

Write down the coordinates of the \(y\)-intercept of the graph of \(y = f(x)\) .

[1]
b.

On the grid draw the graph of the function \(g(x) = 5 - 2x\) for the domain \(0 \leqslant x \leqslant 3\).

[2]
c.

Use your graphic display calculator to solve \(f(x) = g(x)\) .

[1]
d.

Markscheme

Note: Award (A1) correct endpoints, (A1) for smooth curve.     (A1)(A1)     (C2)

a.

\((0{\text{, }}2)\)     (A1)     (C1)

 

Note: Accept \(x = 0\), \(y = 2\)

b.

Straight line in the given domain     (A1)
Axes intercepts in the correct positions     (A1)     (C2)

c.

\(x = 0.943\) (\(0.94259 \ldots \))     (A1)     (C1)

 

Note: Award (A0) if \(y\)-coordinate given.

d.

Examiners report

[N/A]
a.
[N/A]
b.
[N/A]
c.
[N/A]
d.

Syllabus sections

Topic 6 - Mathematical models » 6.1 » Concept of a function, domain, range and graph.
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