F(x) = x + 8
This is because you are simply moving the y-intercept up 8 units.
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The answer is certainly c because i did that and got it right
To calculate area of a Square you'll take a side and square it for example
48ft of fence
48/4=12
Now you'll square
12ft^2
I hope this works...
Make f(x) = y
y = (15x + 50)/(x + 5)
Swap the x and y and make y the subject again
x = (15y + 50)/(y + 5)
x(y + 5) = 15y + 50
xy + 5x = 15y + 50
xy - 15y = 50 - 5x
y(x - 15) = 50 - 5x
y = (50 - 5x)/(x - 15)
So inverse function f^-1(x) = (50 - 5x)/(x - 15)
