Cost = 15x + 2000
Earning = 35x
At break even, cost = earning
35x = 15x + 2000
20x = 2000
x = 100
100 rides are needed to break even.
Find x for each range value.
for example, 11.4 = 4x-3⇒ x=14.4/4 =3.6
all the x values together constitute the domain.
But, in this case, only the last option has 3.6
hence, answer is E
After solving the equation, you will find the correct answer to be C, <span>-7√8/8.
</span>Have a great day!
