The problem provides a table of $x$ and $y$ values for points on a linear graph. The goal is to find the gradient (slope) of the line.

1. Problem Description

The problem provides a table of $x$ and $y$ values for points on a linear graph. The goal is to find the gradient (slope) of the line.

2. Solution Steps

The gradient (slope) of a line is given by the formula:

$m = \frac{y_2 - y_1}{x_2 - x_1}$, where $(x_1, y_1)$ and $(x_2, y_2)$ are two points on the line.

We can choose any two points from the table. Let's use the first two points:

$(x_1, y_1) = (6.20, 3.90)$

$(x_2, y_2) = (6.85, 5.20)$

Now, we can plug these values into the formula:

$m = \frac{5.20 - 3.90}{6.85 - 6.20} = \frac{1.30}{0.65} = 2$

3. Final Answer

The gradient (slope) of the line is

2. The answer is B.