Gradients of linear graphs

Mark scheme and answers · Total marks: 38

Question 1 [1 mark]

2

Mark scheme
  • A [1] — cao 2

Accept algebraically equivalent correct forms.

Question 2 [1 mark]

5

Mark scheme
  • A [1] — cao 2

Accept algebraically equivalent correct forms.

Question 3 [1 mark]

-1

Mark scheme
  • A [1] — cao -2

Accept algebraically equivalent correct forms.

Question 4 [1 mark]

4

Mark scheme
  • A [1] — cao -0.8

Accept algebraically equivalent correct forms.

Question 5 [1 mark]

0.5

Mark scheme
  • A [1] — cao 4

Accept algebraically equivalent correct forms.

Question 6 [1 mark]

3

Mark scheme
  • A [1] — cao -1.5

Accept algebraically equivalent correct forms.

Question 7 [1 mark]

8

Mark scheme
  • A [1] — cao 1.5

Accept algebraically equivalent correct forms.

Question 8 [1 mark]

-2

Mark scheme
  • A [1] — cao 2

Accept algebraically equivalent correct forms.

Question 9 [1 mark]

1

Mark scheme
  • A [1] — cao 2

Accept algebraically equivalent correct forms.

Question 10 [1 mark]

6

Mark scheme
  • A [1] — cao y = 3x + 5

Accept algebraically equivalent correct forms.

Question 11 [1 mark]

2

Mark scheme
  • A [1] — cao -0.5

Accept algebraically equivalent correct forms.

Question 12 [1 mark]

5

Mark scheme
  • A [1] — cao 1.5

Accept algebraically equivalent correct forms.

Question 13 [1 mark]

-3

Mark scheme
  • A [1] — cao -1

Accept algebraically equivalent correct forms.

Question 14 [1 mark]

1

Mark scheme
  • A [1] — cao -3⁄2

Accept algebraically equivalent correct forms.

Question 15 [2 marks]

4

Mark scheme
  • A [1] — cao 3

Accept algebraically equivalent correct forms.

Question 16 [1 mark]

-2

Mark scheme
  • A [1] — cao 2

Accept algebraically equivalent correct forms.

Question 17 [2 marks]

32

Mark scheme
  • A [1] — cao undefined

Accept algebraically equivalent correct forms.

Question 18 [2 marks]

12

Mark scheme
  • A [2] — cao -3

Accept algebraically equivalent correct forms.

Question 19 [2 marks]

0.5

Mark scheme
  • A [2] — cao y = -5x - 7

Accept algebraically equivalent correct forms.

Question 20 [1 mark]

6

Mark scheme
  • A [2] — cao y = -3x - 4

Accept algebraically equivalent correct forms.

Question 21 [1 mark]

2

Mark scheme
  • A [1] — cao -2

Accept algebraically equivalent correct forms.

Question 22 [1 mark]

4

Mark scheme
  • A [1] — cao -0.5

Accept algebraically equivalent correct forms.

Question 23 [1 mark]

-2

Mark scheme
  • A [1] — cao y = -2x + 5

Accept algebraically equivalent correct forms.

Question 24 [1 mark]

2

Mark scheme
  • A [1] — cao 0

Accept algebraically equivalent correct forms.

Question 25 [1 mark]

1

Mark scheme
  • A [1] — cao 3

Accept algebraically equivalent correct forms.

Question 26 [1 mark]

3

Mark scheme
  • A [1] — cao 2

Accept algebraically equivalent correct forms.

Question 27 [2 marks]

-2

Mark scheme
  • A [1] — cao y = 6

Accept algebraically equivalent correct forms.

Question 28 [2 marks]

1.5

Mark scheme
  • A [1] — cao undefined

Accept algebraically equivalent correct forms.

Question 29 [2 marks]

1

Mark scheme
  • A [2] — cao -2

Accept algebraically equivalent correct forms.

Question 30 [2 marks]

2

Mark scheme
  • A [2] — cao 1

Accept algebraically equivalent correct forms.

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