Question

The curve through the ordered pairs (0, 10), (1, 5), and (2, 2.5) can be represented by the function f(x) = 10(0.5)x. What is the multiplicative rate of change of the function?

A.0.5
B.2
C.2.5
D.5

Answer 1

0.5

Explanation:

Hope this helps

Answer 2

y=mx+b
trial and error tells us
f(x)=-0.25x+10 (the given equation doesn't give the correct starting value)

rate of change is -0.25