Graphs of Functions | Edexcel IGCSE Maths Topic Questions 2022

1

1 mark

Brogan needs to draw the graph of $y = x^{2} + 1$

Here is her graph.

q1-easy-2-17-graph-of-equation-edexcel-gcse-maths

Write down one thing that is wrong with Brogan's graph.

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1a

2 marks

Complete the table of values for $y = x^{2} — 2 x$

$x$	$- 2$	$- 1$	$0$	$1$	$2$	$3$	$4$
$y$		$3$	$0$			$3$

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1b

2 marks

On the grid, draw the graph of $y = x^{2} — 2 x$ for values of $x$ from $— 2 to 4$

q3-hard-2-17-graph-of-equation-edexcel-gcse-maths

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1c

2 marks

Solve $x^{2} - 2 x - 2 = 1$

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1a

2 marks

Complete the table of values for $y = x^{2} — x — 6$

$x$	$- 3$	$- 2$	$- 1$	$0$	$1$	$2$	$3$
$y$	$6$			$- 6$

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1b

2 marks

On the grid, draw the graph of $y = x^{2} — x — 6$ for values of $x$ from $— 3 to 3$

q2-medium-2-17-graph-of-equation-edexcel-gcse-maths

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1c

2 marks

Use your graph to find estimates of the solutions to the equation $x^{2} - x - 6 = — 2$

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$x$	0.25	0.5	1	2	4	8
$y$	16.25					8.5

$x$	-2	-1	-0.5	0	1	1.5	2	3
$y$			4.875	4		-1.625