Solve Each Equation by Graphing. 4. x^2-10+21=0

5. 4x^2+4x+1=0

6. x^2+x-6=0

7. x^2+2x+3=0

8. -x^2-6x-9=0

9. x^2-6x+5=0

10. x^2+2x+3=0

11. x^2-3x-10=0

12. -x^2-8x-16=0

For which pair of functions is (gof)(a)=|a|-2?

Im literally having a mental breakdown

What is the domain of the given function? {(3,-2), (6, 1), (-1, 4), (5,9), (-4, 0); o {x | x= -4,-1, 3, 5, 6} o {yl y = -2,0, 1,4,9} o {x|x = -4,-2, -1,0, 1, 3, 4, 5, 6, 9} o y y = 4,-2, -1, 0, 1, 3, 4, 5, 6, 9}