Answer:
line 5. i just took the test and got it correct. oh wait nvm urs is different
Answer:
I18 - xI such that x < 18.
ok, first let's what happens if x = 18:
I18 - xI = I18 - 18I = 0
So, at the moment we have the condition:
I18 - xI > 0.
now, if x is a really large negative number, suppose, x = -100
I18 + 100I = I118I = 118
So, as x can freely move in the negative range, we can see that I18 - xI can be any positive number, so the only restriction that we have is:
I18 - xI > 0.
This means that the domain is:
D = (-∞, 18)
and the range is:
R = (0, ∞)
John has 17000 - 2500 = 14500 left to pay after the down payment
Then add on the finance charges 14500 + 4900 = 19400
The total of $19400 is to be paid over 60 monthly instalments, so John will be paying 19400÷60 = $323.30 per month
