Answer:
The (constant) rate of change with respect to the variable x of a linear function y = f(x) is the slope of its graph. If x and f have units in Definition 2, then the units of the rate of change are those of f divided by those of x.
Step-by-step explanation:
I think your answer is y=-4/7x+5
Its the 3, 4, 5 Pythagorean Triple so it would be D 8 inches
Y= 4.5 because the length is less than 6=x.