1 ½ x 4 2/9 = 2 ⅘ x ⅕ = 4 3/7 x ⅚ = 6/6 x 1 ¼ = 1 ¼
1 answer:
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Answer:
To find f-¹(x) of f(x) equate f(x) to y
That's
f(x) = y
So we have
Next interchange the variables that's x becomes y and y becomes x
That's
Next make y the subject
Cross multiply
We have
4y - 7 = 10x
Move -7 to the right side of the equation
4y = 10x + 7
Divide both sides by 4
We have the final answer as
So
Hope this helps you
Answer:
Just substitute 0 instead of f (x),therefore
The answer option is C