Answer:
Step-by-step explanation:
The rate of change is defined as the derivative of the function, or also known as the slope. The derivative here would be 3. Another function which has the same rate of change would be any function with a slope of 3. A few example are:
f(x) = 3x + 1
f(x) = 3x + 2
W=7
L=19
Don’t mind the problem above. Hope this helps
Answer:

Step-by-step explanation:
We have three similar triangles:

therefore the sides are in proportion:

We have AD = a, CD = 16 and BD = 4. Substitute:
<em>cross multiply</em>

and other proportion:

We have AB = b, BC = 16 + 4 = 20 and BD = 4. Substitute:
<em>cross multiply</em>
