Was Isaac alive when his grandson Joseph was sold into slavery?

Answer:

Isaac (Yitzhak) was very much alive when his grandson Joseph (Yosef) was sold into slavery. Isaac lived to be 180 years, but his death is recorded much earlier in the Book of Genesis (in chapter 35 verses 28 and 29 ). Joseph was sold into slavery at age 17 and at that time Jacob was 108 years old and Isaac was 168 years old. Per the timeline, it seems that Issac would have died 12 years later, one year before Joseph was elevated to be the Prime Minister of Egypt.

Joseph was 30 years old when he became the Viceroy of Egypt. Joseph was 39 years old (30 plus 7 years of plenty plus 2 years of famine) and Jacob was 130 years old, when Jacob went to Egypt and settled in Gorshen.