Question

The table below models the cost, y, of using a high-efficiency washing machine and a standard washing machine over x number of years.

Which equation represents the cost of the high-efficiency washing machine over a given number of years?

Which equation represents the cost of the standard washing machine over a given number of years?

After how many years of use would the washing machines cost the same amount?

Which washing machine would be the more practical purchase if kept for 9 years?

Answer 1

Answer:1: y = 25x + 500

2: y = 30x + 400

3: 20

4: standard machine

Step-by-step explanation: on edge 2021

Answer 2

heres ur answer:

i) y = 25x + 500

ii) y = 30x + 400

iii) the washing machines would cost the same amount after 20 years of use

iv) standard machine