Final answer:
To determine the value of K in point A(6, K), we can use the formula for finding the slope of a line and substitute the given values into the formula and solve for K.
Step-by-step explanation:
To determine the value of K in point A(6, K), we can use the formula for finding the slope of a line: slope = (y2 - y1) / (x2 - x1).
Given that the slope is 1/2 and a point P(-2, 1) lies on the line, we can substitute the values into the formula and solve for K.
Using (x1, y1) = (-2, 1) and (x2, y2) = (6, K), we have: 1/2 = (K - 1) / (6 - (-2)).
Now, we can solve for K by cross-multiplying and simplifying the equation.