I want to write a function that receives the speed of a machine. Give a negative score for every 5 km / h increase of more than 74 km / h, and if, for example, the speed becomes 80

Give a negative score of 2 if 85

3 negative scores

### >Solution :

you are describing a mathematical formula that If I got right is:

give negative point for every X (5 in our case) Km/h above threshold T

you can just write:

```
function(speed) {
const T = 74;
const X = 5;
return Math.floor((speed-T)/X);
}
```