Answer: -10/9
Step-by-step explanation: is this what you were looking for
Answer:
Hello!!! Princess Sakura here ^^
Step-by-step explanation:
6a)

6b)

The constant of proportionality is the ratio between two directly proportional quantities. Two quantities are directly proportional when they increase and decrease at the same rate. The constant of proportionality k is given by k=y/x where y and x are two quantities that are directly proportional to each other.
The inverse of the given function is y = (12-x)/6
<h3>Inverse of a function</h3>
Given the following function expressed as:
f(x) = -6x +1/2
Replace y with x
x = -6y + 1/2
Make y the subject of the formula
6y = -x + 12
y = (12-x)/6
Hence the inverse of the given function is y = (12-x)/6
Learn more on inverse of function here: brainly.com/question/2873333
#SPJ1