Move to object vector3.lerp help

I’m trying to have an object move to a position with the vector3.lerp. heres the code

using UnityEngine;
using System.Collections;

public class NPCJump : MonoBehaviour {
	float startTime;
	float duration = 1.0f;
	public bool jump = false;
	Vector3 startPoint;
	Vector3 endPoint;
	void LateUpdate () {
		if(jump) {
			startPoint = transform.position;
			endPoint = new Vector3 (startPoint.x, startPoint.y * 5, startPoint.z);
			startTime = Time.time;
			transform.position = Vector3.Lerp(startPoint, endPoint, (Time.time - startTime) / duration);
			jump = false;

Instead of having the endPoint be linked to an object, I just want the endPoint to be some units above the startPoint. But I think I’m doing it wrong.

anybody have a better way of making him jump?

How about storing a 'jumpOffset' Vector3, which gets added to the 'stored position' every frame. That way, you can do something like this

Vector3 groundPosition = however you set that if the dude wasn't jumping;
Vector3 jumpOffset;
public float maxJump = 10;
bool isJumping = false;

jumpOffset should be set at the top, so that it can be modified by things. Then, do your jumping in a coroutine-

IEnumerator DoJump(jumpTime)
    float originalTime = jumpTime;
    isJumping = true;
    while(jumpTime > 0)
        jumpTime -= Time.deltaTime;
        float jumpProportion = jumpTime / originalTime;
        float jumpHeight = maxHeight * Mathf.Sin(jumpProportion * Mathf.PI);
        jumpOffset = new Vector3(0, jumpHeight, 0);
        yield return null;
    isJumping = false;
    return null;

Then call it like this-

if(thing should jump)

This, of course, provides totally unrealistic, yet predictable jumping behaviour. I think that's what you wanted?