Can someone help me with 13

Which is the graph of f(x) = (4)x? image for option 1 image for option 2 image for option 3 image for option 4

Which expression will have the same sum as 3_8 + 1/4?

Plz determine whether the polynomial is a difference of squares and if it is, factor it. y2 – 196 is a difference of squares: (y + 14)2 is a difference of squares: (y – 14)2 is a difference of squares: (y + 14)(y – 14) is not a difference of squares