Answer:
I solved it and my answer is - 2
Step-by-step explanation:
5x+6=8x+12
5x-8x =12 - 6
-3x =6
Divide by - 3
X=-2
Answer:1 2/3
Step-by-step explanation:
2/3+1/3+2/3=5/3=1 2/3
To find the inverse of this function, we first need to replace f(x) with y.
y = 2x^2 + 3
Now, we swap x and y
x = 2y^2 + 3
Now, we solve for y.
-3
x - 3 = 2y^2
Sqrt both sides.
√(x - 3) = 2y
Divide by 2
√(x - 3)/2 = y
Replace y with f^-1(x)
√(x - 3)/2 = f^-1(x)
Just realized you were asking for f(-1), not f^-1(x)
Feels bad.
f(-1) = 2(-1^2 + 3)
f(-1) = 2(-1^5)
f(-1) = 2(-1)
<u>f(-1) = -2</u>
I'm leaving the original answer in case you also need the inverse function. :)
Answer: Yes it is
Step-by-step explanation:
You have to take 2 times 5/2 witch is the same is 2.5
So 2.5 times 2
3 times 2.5
6 times 2.5 and that's how you get the answer
