Answer:
Domain: all real numbers
The interval on which the function is increasing is : (0 , infinity)
The interval on which the function is decreasing is : (-infinity , 0)
The interval on which the function is constant is : ( 0,0 )
Step-by-step explanation:
f(r)=5r^2−4
This is a quadratic function.
vertex at (0, -4) and with positive coefficient for r^2
The interval on which the function is increasing is : (0 , infinity)
The interval on which the function is decreasing is : (-infinity , 0)
The interval on which the function is constant is : ( 0,0 )
Answer:

Step-by-step explanation:





3. True
4. False
5. False
6. True
7. False
I dont know numbers 1, 2, or 8.
Answer:

Step-by-step explanation:
Priya will make b loaves of banana bread using f cups of flour.
She uses
cups of flour to make 4 loaves of banana bread.
It implies,

Cross multiplying both sides,

Hence, the correct option is (d).
Answer:
a concave polygon
Step-by-step explanation:
It's a concave polygon because it has one angle that is more than 180 degrees.(I think at least)