Slope = 4
Step-by-step explanation
1. Find slope by using the slope formula (y2 - y1) / (x2 - x1). Input the values like 0-40/0-10,
2. Simplify 0-40/0-10 which simplifies to -40/-10. Cross out the negative signs since they cancel out that leaves you with 40/10.
3. 40/10 can be simplified by dividing 40 by 10, which is 4.