.................................
well Clearly, this function is decreasing and negative over its domain. This function is decreasing over the interval. but it is not negative. so the function may not be negative over the interval it is decreasing on.
Answer:
a=3 and b=-2
Step-by-step explanation:
We are given that five terms of a quadratic sequence are
1 8, 21, 40, 65.
The nth term of this sequence
=
We have to find the value of a and b where a and b are integers.
For n=1
......(1)
For n=2

.....(2)
Subtract equation (1) from (2) we get


Using the value of a=3 in equation (1)


Hence, the value of
a=3 and b=-2
It should be A 6,1 because 6 is the x-axis and 1 is the y-axis