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:
They can W and W.
They can W and D.
They can D and D.
They can L and L.
They can L and D.
They can W and L.
Step-by-step explanation:
X greater than or equal to 2
1/7? This doesn't seem to be college math but that's cause I'm in high school :P
Answer:
Choice B
Step-by-step explanation:
This is shown by following the simple multiplication rule that has been set, which is x*6=y. By doing this, we get:
Choice A: 1 * 6 = 6
Choice B: 2 * 6 = 12
So as you can see, choice A would be incorrect, and choice B would be correct.
