Answer:
m = -1/4
Step-by-step explanation:
4y + x = 8
Arrange the equation in a slope intercept form y = mx+b, where m is the slope
4y + x = 8, subtract x from both sides
4y = -x +8, divide both sides by 4
y = -x/4 + 8/4 , simplify
y = -x/4 + 2, compare this to the general form y=mx+b and we see that the slope m = -1/4
By applying the concept of the inverse of a function and <em>algebraic</em> handling, we conclude that the inverse of f(x) = (- 2 · x + 2)/(x + 7) is g(x) = (- 7 · x + 2)/(x + 2).
<h3>How to find the inverse of a function</h3>
In this question we have a <em>rational</em> function f(x) and finding its inverse consists in clearing x in terms of f(x). Prior any algebraic handling, we need to apply the following substitutions:
![x \to y](https://tex.z-dn.net/?f=x%20%5Cto%20y)
![f(x) \to x](https://tex.z-dn.net/?f=f%28x%29%20%5Cto%20x)
![x = \frac{-2\cdot y + 2}{y+7}](https://tex.z-dn.net/?f=x%20%3D%20%5Cfrac%7B-2%5Ccdot%20y%20%2B%202%7D%7By%2B7%7D)
x · (y + 7) = - 2 · y + 2
x · y + 7 · x = - 2 · y + 2
2 · y + x · y = - 7 · x + 2
y · (2 + x) = - 7 · x + 2
![g(x) = \frac{- 7\cdot x + 2}{x + 2}](https://tex.z-dn.net/?f=g%28x%29%20%3D%20%5Cfrac%7B-%207%5Ccdot%20x%20%2B%202%7D%7Bx%20%2B%202%7D)
By applying the concept of the inverse of a function and <em>algebraic</em> handling, we conclude that the inverse of f(x) = (- 2 · x + 2)/(x + 7) is g(x) = (- 7 · x + 2)/(x + 2).
To learn more on inverses: brainly.com/question/7181576
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Answer:
Step-by-step explanation:
3−4x/3 this is for x
y = -4/3x + 3 this is for why I’m not sure which one your trying to solve for