Transformation required to change from red to blue, y = y - 7
Explanation:
We are given two parallel lines on a graph.
We know that vertical line is known as the y axis and horizontal line is known as the y axis.
In the given graph the difference between the red and blue lines is 7 blocks towards down which can be noted by moving the point 2 on y axis to the point -5 on y axis will make the parallel lines intersect. So, we have to transform the y coordinates to y - 7 (- for downward movement) factor. So a transformation of y = y-7 on the red line is required to transform it to the blue line.