Question

4. Priya starts with $50 in her bank account. She then deposits $20 each weekfor 12 weeks.4a. Write an equation that represents the relationship between the dollaramount in her bank account and the number of weeks of saving.Your answer4b. What are the coordinates of the point on the line that represents theamount in savings after 3 weeks?O (3,170)O (170,3)O (3,110)O (110,3)

Answer 1

4a. D = 50 + 20W

4b. (3, 110)

Step-by-step explanation

4a. The equation that represents the relationship between the dollar amount and the number of weeks of saving is

`D=50+20W`

Where;

D is the Amount n dollar in her bank account,

W is the number of weeks of saving.

4b. The coordinates of the point on the line that represents the amount in savings after 3 weeks implies substituting W = 3 into the relation above

`\begin{gathered} D=50+20(3) \\ D=50+60 \\ D=110 \end{gathered}`

Hence, the coordinates are (3, 110)