Answer:
-7,0,5,8
Step-by-step explanation:
Just try to visualize it. If a function is reflected across the x-axis, that means that positive values are flipped and become negative and negative values become positive.
So, g(x)=-f(x).
Ok I’ll help give me on minute
Sorry if my English is bad i am German
100% of the price = $400
x % of the price = $320
we need to find x
using a proportion
100 : 400 = x : 320
100 * 320 = 400 * x
32000 = 400x
x = 32000 / 400
x = 80
That means the new price is 80% of the previous price.
100% - 80% = 20%
and based on this we can make a conclusion that the discount was 20%
I hope it is clear to you, feel free to ask anything about it :)
The average is 822 I believe.
Y=4x+1 is the answer to your question