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For each graph below, select its possible equation from this list - OCR - GCSE Maths - Question 17 - 2018 - Paper 1

Question 17

For each graph below, select its possible equation from this list. (a) (b) (c)

Worked Solution & Example Answer:For each graph below, select its possible equation from this list - OCR - GCSE Maths - Question 17 - 2018 - Paper 1

Step 1

(a)

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Answer

The graph in part (a) displays a hyperbolic shape, which indicates it corresponds to the equation of the form for a rational function. Thus, the possible equation is:

$y = \frac{1}{x}$

Step 2

(b)

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Answer

The graph in part (b) illustrates a sinusoidal wave-like pattern, which corresponds to the sine function. Therefore, the possible equation is:

$y = \sin x$

Step 3

(c)

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101 rated

Answer

The graph in part (c) shows an exponential growth, which matches the behavior of an exponential function, specifically:

$y = 2^x$

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