Question

tajiri opens a savings account. each week he adds the same amount of money to his account. the graph represents the amount in his bank account, y, after x weeks. how much money does tajiri have in his bank account after 4 weeks? tajiri has \boxed{} dollars in his bank account after 4 weeks.

Explanation:

Step1: Identify weekly deposit

Find the value of $y$ when $x=1$: $y=15$. So weekly deposit is $\$15$.

Step2: Calculate total after 4 weeks

Multiply weekly deposit by 4: $15 \times 4$

Answer:

60

Tajiri has 60 dollars in his bank account after 4 weeks.