Single Perceptron Neural Networks for Linear Regression week 3

I submited my programming assigment and gave me 0 and all codes are written and testes pass , I don’t what is the problem?

There are several different issues that can cause this.

You can find out by looking at the grader feedback.

You’ll need to click on the > next to each function, this will display a message that tells you what the grader is unhappy about.

Please post a screen capture image here that shows the grader feedback message.