-0.5 is to the <em>right</em> of -34 on the number line.
Step-by-step explanation:
If we were talking in terms of <em>positive </em>numbers, 0.5 would be to the left of 34, since 0.5 is closer to 0 on the number line. When we talk about negative numbers, everything is mirrored: numbers <em>decrease </em>as we go further left of 0, and <em>increase</em> as we go right towards 0.