How do I write an equation that models the data when it asks for "m"?

Question

I am doing a question on a website called Big Ideas Math and I'm in Advanced Algebra in 8th grade. It has parts to a question and I have part a and c done. But part b says "Write a function that models the data." Then below it, it says m=___ and I have to fill it in. I don't know what I am doing wrong and I just don't quite understand what it is asking for. Please help me!

Answer 1

Linear equation

y = mx + b

m : slope or growth or rate( slope in general)

b : y-intercept or starting point

x: input

y: output