Answer:
- maximum increase: 90°
- maximum decrease: -90°
- zero change: 0°
Step-by-step explanation:
A line or ray pointing straight upward will be pointing in the direction of maximum increase. It will make an angle of 90° with respect to the x-axis.
A line or ray pointing straight downward will be pointing in the direction of maximum decrease. It will make an angle of -90° with respect to the x-axis.
A horizontal line will be associated with zero change. It makes an angle of 0° with respect to the x-axis.
For arithmetic sequence
Sometimes the answer could be asked in the form
a(n)=4+2(n-1),
Sometimes it could asked in simplified form
a(n)= 2n+2
Answer:
here we work with factorials, so if we have a whole number N, then:
N! = N*(N-1)*.....*2*1
then, for the given expressions we have:
1) 6! = 6*5*4*3*2*1 = 720.
2) 3!*21 = (3*2*1)*21 = 216
3) and the last expression seems incomplete, i guess this is:
11! = 11*10*9*8*7*6*5*4*3*2*1 = 39,916,800
