Graphs 6
2 marks · NormalThe table shows values of and for the graph of .
| x | y |
|---|---|
| -4 | |
| 2 |
Write down the value of when:
(a)[1 mark]
(i)
(b)[1 mark]
(ii)
Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.
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(a) -2
(b) 4
Common mistakes: Using negative sign incorrectly; Multiplying instead of dividing
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Marking points
A1 (a) · 1 mark · Correct value for y when x = -4.
A2 (b) · 1 mark · Correct value for y when x = 2.
Worked solution
For :
When , .
When , .