Please mark me brainless :)
Answer: -rad7, +rad7
Explanation:
- Divide the equation by 6 (x^2-7=0)
- Add 7 (x^2=7)
- Square root x to find solutions (x=rad7)
- Dont forget the radical means that there are two solutions!
F-1(x)=x/4 represents the inverse function because to find the inverse you have to interchange the variables & solve for y
Answer:
D
Step-by-step explanation:
D is on the same plane as A, B, and C
The input is the y
y = x^2 - 5
plug in what we're given
-1 = x^2 -5
add 5 to both sides
4 = x^2
take the square root of both sides
2 = x
Hope this helps :)