Is 4(x+2 equivalent to 4x+8 ? show work

Is each relation a function? if so, state whether it is one-to-one or many-to-one. 3. (-4,7), (-3,5), (1,4), (3,-8), (5,-11) 4. (-4,8), (-2,4), (0,1), (2,4), (4,8) 5. (-2, 1), (-2,3), (0,-3), (1,4), (3,1)

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

Use set builder notation to represent the following set: { -3, -2, -1, 0}