Question 63267
Given form is 4x + 2y = 10
Add - 4x to both the sides
==> 4x + 2y - 4x = - 4x + 10
==> 2y = - 4x + 10
==> 2y/2 = (-4x+10)/2
==> y = - 2x + 5

This is of the form y = mx + c where m is the slope.

So the slope of the given line is - 2

Good Luck!!!