20% discount is definitely the $ saver!
Sorry about all the arrows, but hope this helps! Reels=$21 and rods=$80. All my work is shown.
Answer: B. (-4, 0)
<u>Step-by-step explanation:</u>
The question is: when is the <u>function</u> constant?
function is also called f(x), which is also called "y".
So the question is asking: when is the y-value constant?
the y-value is constant (not increasing or decreasing) between x = -4 and x = 0. So the interval is (-4, 0)
wdym: 14 of the total cake