---
id: 5e8f2f13c4cdbe86b5c72d94
title: 'Neural Networks: Optimizers'
challengeType: 11
videoId: hdOtRPQe1o4
---
## Description
## Tests
```yml
question:
text: |
What is an optimizer function?
answers:
- |
A function that increases the accuracy of a model's predictions.
- |
A function that implements the gradient descent and backpropagation algorithms for you.
- |
A function that reduces the time a model needs to train.
solution: 2
```