The train will take one hour, then the bus will take two and a half hours. I need to allow half an hour to change between them.
1 answer:
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First you must know that f(x) means the same thing as y so...
y = 9x - 8
To find the inverse switch the places of x and y and solve for y
x = 9y - 8
x + 8 = 9y
^^^That means the answer is A!
Hope this helped!
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