Help pleasee 100 points 



1. What is the equation for the line?




2.What is the equation of a line with a slope of ​3​ and a point (3, 1) on the line?

Express the equation in the form of y=mx+b where m is the slope and b is the y-intercept.




3.The graph shows the amount of money Roberta saves each week.







What does the initial value mean for this function?




Roberta saves $10 each week.

After 4 weeks, Roberta has $90.

Roberta had $50 before she started to save money each week.

Roberta had no money until she started to save $10 a week.