B shows a constant rate of change.
Geometric progresión:
we can calculate any term, using this rule:
an=a₁*r^(n-1)
a₁=the first term
r=the common ratio
a₆=128
r=2
an=a₁ * r^(n-1)
128=a₁ * 2⁶⁻¹
128=a₁ * 2⁵
128=a₁ * 32
a₁=128/32=4
Solution: a₁=4
The table with x=0, 1,2 y= 2,-1,-4
It’s an obtuse triangle, this is because none of the sides/angles are equal to one another. Hope this helped you