Answer:
-3/4
Explanation:
The rate of change is also the slope
3x+4y = 10
Solve for y
4y = -3x+10
y = -3/4 x +10/4
y = -3/4 x + 5/2
This is in slope intercept form
y = mx+b where m is the slope and b is the y intercept
The slope is -3/4 and this is the rate of change