Answer:
y = 3 · 2ˣ
Step-by-step explanation:
Exponential function is:
y = abˣ
Plug in the points:
⅜ = ab⁻³
12 = ab²
Solve the system of equations. Start by dividing the second equation by the first:
12 / ⅜ = (ab²) / (ab⁻³)
32 = b⁵
b = 2
Plug into either equation to find a:
a = 3
Therefore:
y = 3 · 2ˣ
I think the best answer would be answer D
Now, check the picture below
the area of the cross-sections, is really the same area as the rectangular faces, so, just use those areas, since they're the same
In 3's multiplication table every next number is addition of 3 to its previous number.
The 3' s multiplication table is,
3, 3+3=6, 6+3=9, 9+3=12, 12+3=15, 15+3=18,.... so on.