Final answer:
To find the values of x and y in the linear equation y = 9 + 3x, select a value for x, substitute it into the equation, and then solve for y. A table of these values can be created, and these points can be plotted on a graph to visualize the line represented by the equation.
Step-by-step explanation:
The matrix equation provided appears to be incomplete as the actual equation was not included in the question. However, based on the additional information given, we can assess how to find values of x and y in the provided linear equation y = 9 + 3x. To find specific values for x and y, one must choose a value for x, substitute it into the equation, and solve for y. This process is illustrated through the construction of a table of values, and the corresponding points are plotted on a graph to visualize the linear relationship. For example, if x is 0, then y will be 9 (since 9 + 3*0 = 9). If x is 1, then y will be 12 (since 9 + 3*1 = 12), and so on. This shows how different values of x can be plugged into the equation to get the respective y values.