Math- Edited, Here Are The Questions That Now Make Sense And Are Fully Edited

[reeses4life]

1. Use the function rule f(x)=x* -1 ^x. Find the output f(2).
A) 4
B) 3
C) -2
D) 2

2. 5x3n
A) 15,30,45,60
B) 5,15,45,135
C) 0,15,45,135
D) 15,35,135,405

[fiction-factory]

First one is 2x1 = 2
I have answered 2 before as A if it's a question about the terms of a sequence for n=1,2,3....

[reeses4life]

Thank you, sorry I meant to only post the first one

[fiction-factory]

The reason the answer is 2 is that we are calculating 2 x (-1)².
The square of (-1)² = 1 so the sum becomes 2 x 1.

[fiction-factory]

Happy to help

[Calibax]

You should probably have been able to do the first one yourself. Simply replace the x's in the function with 2's and remember that indices are actioned before multiplication.

[Calibax]

^sorry FF :o)

[fiction-factory]

I'm assuming your * means "multiplied by".