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
Answer:
Step-by-step explanation:
We are given ,
and
are zeros of the function. We can use the sum and product of roots. You may have come across these equations before ↓
Since the coefficients are already in a, b, and c's, we do not need to sub in anything else.
Now, you are asked to evaluate . The next step after finding the roots above ↑, is to factorise this equation to be solved.
=
Sub in each respective roots,
=
=
Hope this helped! Ask me if there's any part of the working you don't understand :)
