Question

Rin spends $20 every week on drum lessons.The two variables are:d = total amount of dollars Rin spendsw = number of weeksA 2-column table with 4 rows. Column 1 is labeled weeks with entries 1, 2, 3, 4. Column 2 is labeled dollars with entries 20, 40, 60, 80.Which statements are correct? Select all that apply.

Answer 1

d = total amount of dollars that Rin spends

w = number of weeks

If Rin spends $20 per week, it means that in 2 weeks, the amount that Rin spends would be 2* 20 = $40

This is shown in the table

The amount spent depends on the number of weeks. Thus,

independent variable = number of weeks = w

dependent variable = amount spent = d

The equation is

d = 20w

Thus, the correct statements are

The independent variable causes a change in the dependent variable(number of weeks affects amount)

The equation is d 20w

As the number of weeks increases, the dollars Rin spends increases