Looking at your answer your function is correct.
If the software is telling you something's wrong, it has to be with the formatting; maybe they want you to simplify the second part of the function. If that is the case, use the distributive property:
0.25(x-200)+15
0.25*x-0.25*200+15
0.25x-50+15
0.25x-35
553,000 is the answer for rounding up
Answer:
No
Step-by-step explanation:
To be a function each x value must have one y value. -8 has two y values, one being -6 and the other being 1.
hope this helps!
Recall the double angle identity,
Then
has a period of , so that for any integer . This means
We get solutions of this form in the interval for and , giving
or
2x + x - 1 x
= ------------------ * ---------
x(x - 1) 8
3x - 1
= --------------
8x - 8