Answer
[tex]\sqrt{34}[/tex]
Step-by-step explanation
You would use the pythagorean theorem for this problem. The point on the y-axis is 5 away from (0,0). The point on the x-axis is 3 away. You would square these, leading from
5+3 to
25+9=[tex]\sqrt{34}[/tex]
Answer is [tex]\sqrt{34}[/tex].