Answer
Equation would be
y=x+4
The table and the graph has been uploaded as a screenshot from demos.
Work Step by Step
The equation is y=x+4 because the y intercept is 4 as when connie is 0 years old, Donald is 4 years. The answer was solved this way because Donald is 4 years older than Conner and there relationship is increasing by one as each year they both grow older by 1.
The graph was created with Donald on the y axis and connie on the x axis with c representing Connie on the table and D representing Donald.