Answer:
negative and increasing
Step-by-step explanation:
The graph in the interval b to c is below the x- axis and is therefore negative,
from b to c the slope of the curve is positive so it is increasing
Yes it is a good line of best fit
Answer: r - 24
Step-by-step explanation:
![\frac{[(r+2)(2r-9)]-(r^2+17r+30)}{r+2}](https://tex.z-dn.net/?f=%5Cfrac%7B%5B%28r%2B2%29%282r-9%29%5D-%28r%5E2%2B17r%2B30%29%7D%7Br%2B2%7D)
Combine like terms;
Solve the quadratic equation;
Simplify;
Sequence: 3/4, 3/16, 3/64, 3/256
a8=?
a1=3/4
a2=3/16
a3=3/64
a4=3/256
a2/a1=(3/16)/(3/4)=(3/16)*(4/3)=4/16=1/4
a3/a2=(3/64)/(3/16)=(3/64)*(16/3)=16/64=1/4
a4/a3=(3/256)/(3/64)=(3/256)*(64/3)=64/256=1/4
a2/a1=a3/a2=a4/a3=r=1/4
an=a1*r^(n-1)
an=(3/4)*(1/4)^(n-1)
an=(3/4)*(1)^(n-1)/(4)^(n-1)
an=(3/4)*(1/4^(n-1))
an=(3*1)/[4*4^(n-1)]
an=3/4^(1+n-1)
an=3/4^n
n=8→a8=3/4^8
a8=3/65,536
Answers:
The general term or nth term for the sequence is: an=3/4^n
a8=3/65,536
Y=x-1 as the general line equation is y=x
