Which of the following function from Ato B are one -one and onto? f3={(a,x),(b,x),(c,z),(d,z)};A={a,b,c,d},B={x,y,z}

Mixed-up sentence exercise

Put the parts in order to form a sentence. When you think your answer is correct, click on "Check" to check your answer. If you get stuck, click on "Hint" to find out the next correct part.