Final answer:
To find y so that EF is parallel to GH, we can use the slope formula and set the slopes of EF and GH equal to each other.
Step-by-step explanation:
In order for EF to be parallel to GH, the slope of EF should be equal to the slope of GH.
The slope of EF can be found using the formula:
m = (y2 - y1) / (x2 - x1)
Using the coordinates of E and F, we get:
m = (5 - y) / (6 - (-6))
The slope of GH can be found using the coordinates of G and H. Setting the slopes of EF and GH equal to each other, we can solve for y.
Learn more about slope formula