D
I think it is D (-3/4x)-7(3)
The parabola goes down(makes a sad face) because it is negative. The answer is 0,0
Answer:
11 is the common difference of the given sequence.
Step-by-step explanation:
Here the given sequence is
Terms 1 2 3 4
Sequence -12 -1 10 21
Now we know the arithmetic sequence is -12, -1, 10, 21.........n terms
common difference of an arithmetic sequence is represented as difference of nth term and (n-1)th term.
Therefore common difference d = -1 - (-12) = -1 +12 = 11
common difference 11 is the right answer.
If it has a single zero that means it has to be just touching the x-axis with its tip.
We know that if it has only one zero, the discriminant equals 0.
So,
Solving for k,
.
Hope this helps.
13 is what i think
3 divided by 2= 1.5
1.5*9=13.5 and you can't score half a point so the answer is 13
