Question

I DONT UNDERSTAND THIS AHHH

Answer 1

Explanation:

Domain ( x values ): { 2, 4, 6, 8 }

Range ( y values ): { -2, 2, -4 , 7, -8 }

The arrows show which number they go to.

So, 2 having two arrows means. There's a ( 2, -2 ) and a ( 2, 2 )