Answers − Gradients of Straight Line Graphs
1. Find the gradient of the graph y = 5
(a) From answer 1 of Straight Line Graphs is
(b) Work out the gradient. From the graph every time x increases by 1, y increases by 0 so
2. Find the gradient of the graph y = x − 3
(a) From answer 2 of Straight Line Graphs is
(b) Work out the gradient. From the graph every time x increases by 1, y increases by 1 so
3. Find the gradient of the graph y = −x
(a) From answer 3 of Straight Line Graphs is
(b) Work out the gradient. From the graph every time x increases by 1, y decreases by 1 so
4. Find the gradient of the graph y = −2 − x
(a) From answer 4 of Straight Line Graphs is
(b) Work out the gradient. From the graph every time x increases by 1, y decreases by 1 so
5. Find the gradient of the graph y = 3x + 4
(a) From answer 5 of Straight Line Graphs is
(b) Work out the gradient. From the graph every time x increases by 2, y increases by 6 so
6. Find the gradient of the graph y = 3 − 2x
(a) From answer 6 of Straight Line Graphs is
(b) Work out the gradient. From the graph every time x increases by 2, y decreases by 4 so
7. Find the gradient of the graph 2y − x = 5
(a) From answer 7 of Straight Line Graphs is
(b) Work out the gradient. From the graph every time x increases by 2, y increases by 1 so
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