Question

Ricardo says that the expression y+4 is equivalent to the expression 1y+4. Is he correct. Explain

Answer 1

Yes, he is correct. Any value multiplied by one is equal to the original value. Ex: 4x1=4. So, the same applies with y:  yx1y=y.

Answer 2

Yes because think of it like this. Put a imagenary 1 in front of y and either it will still be the same