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Look for groups of 2 (a group of two on the inside, makes one on the outside)
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Answer: C
Answer:
a) y = (x+2)/3
b) 5
Step-by-step explanation:
f^-1(x) means "f inverse of x". To find the inverse, we simply:
a ) f(x) = 3x -2
y = 3x - 2 --> because f(x) is the same thing as y
x = 3y - 2 --> to find the inverse, we simply just switch x and y
x + 2 = 3y
y = (x+2)/3
b) f^-1(13)
f^-1(13) = [((13) + 2)/3]
f^-1(13) = (15)/3
f^-1(13) = 5
Answer:
3. 33
4. g(x) = 3 (1+n)
Step-by-step explanation:
For the equation, I am not entirely sure that is what your teacher is looking for, but it definitely works! : )
To make it I just said that it looked like there were three different equal parts to the figures, and the area of the parts increases by one every time. So I just added 1 to whatever number it is which gets the area of one of the parts, and multiplied it by 3!
For number 3, I just plugged it into the equation I just made.
g(x) = 3(1+(10))
= 3(11)
= 33