### 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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