Question a: 3cm
question b: 8cm
question c: 12cm
(could be wrong)
I’m assuming you need to write an equation to display the relationship.
y=20x+50
Answer: B) increasing for x < -4/3 and x > 4/3
decreasing for -4/3 < x < 4/3
<u>Step-by-step explanation:</u>
Graph the equation and follow the curve from left to right. If you are going up, it is increasing. If you are going down, it is decreasing.
Refer to the image below. Red is increasing. Blue is decreasing.
The vertices are at: x = -4/3 and x = 4/3
The answer is 2.99 explanation is that I used my calculator lol
I think step five is correct but no sure