Drawing & Using Graphs: WJEC GCSE Numeracy Intermediate June 2017 Unit 1 Q2

Numeracy Intermediate June 2017 Unit 1 Q2

WJECIntermediateCurrent spec3 marksDrawing & Using Graphs

2. Eleri and Yvon are sisters.
They both live at Cwm Uchel.
They do not go to the same school.
The graph represents each of their journeys to school and back.

Key:

Key: dashed line represents Eleri’s journeys, solid line represents Yvon’s journeys. Graph of Distance from home (km), 0 to 8, against Time, 08:00 to 16:00. Dashed line: from 0 km at 08:00 up to 8 km at 09:00, level at 8 km until 15:00, back to 0 km at 16:00. Solid line: from 0 km at 08:00 up to 6 km at 09:00, level at 6 km until 14:30, back to 0 km at 15:30

(a) At what time did Yvon arrive home from school?
Circle your answer. [1]

14:45 15:15 15:30 15:45 16:00

(b) Eleri cycles along a straight road to school and back.
How far does she cycle when going to school and back in one day?
Circle your answer. [1]

6 km 8 km 9 km 12 km 16 km

‘The school Eleri attends is 2 km from Yvon’s school.’

Is this true?

Certainly true ☐ Certainly false ☐ Can’t tell ☐

Give a reason for your answer. [1]

Scheme	Marks	Comments
15:30	B1

Scheme	Marks	Comments
16 km	B1

Mark scheme (c)

Scheme	Marks	Comments
Indicates or implies ‘can’t tell’, with a reason suggesting, e.g. ‘don’t know in which direction they travel’, ‘could be (up to) 14 km apart’, ‘the graph only says distance from home’	E1	Ignore spurious additional information. Allow ‘can’t tell’ with e.g. ‘one sister takes a different route’, ‘different roads taken’, ‘one sister changed direction’, ‘could be 9km apart’, ‘Eleri may have taken a longer route’ Do not accept ‘can’t tell’ with e.g. ‘they don’t leave from the same place’, ‘Yvon travels slower than Eleri’, ‘schools finish at different times’, ‘the graph shows distance from home not distance from school’, ‘not known if Yvon travels in a straight line’