--- id: 5e8f2f13c4cdbe86b5c72d94 title: 'Neural Networks: Optimizers' challengeType: 11 videoId: hdOtRPQe1o4 dashedName: neural-networks-optimizers --- # --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. ## --video-solution-- 2