And can you give an explanation on how you got the answer too?

b.

Step-by-step explanation:

When you replace x in a parent function by x - h, the function shifts h units horizontally.

Here, x is replaced with x + 4.

x + 4 = x - (-4)

x - (4) = x - h, so h = -4.

The shift is 4 units to the left.

b.

Line one

Step-by-step explanation:

In order to find the answer to this question simply plot the points on a graph and compare the lines to see which is steeper.

When you plot the points you will see that lines one slope is lower and goes steeper then line two, which means it's your answer.

Hope this helps.