F(x)= 8ˣ + 1
for x = 1/3, f(x) = 8^(¹/³) + 1 → f(x) = ∛8 + 1→ f(x) = 2+1→ and f(x) = 3
Answer:
D
Step-by-step explanation:
Start by the easier part. The graph is below the x axis. The only way that can happen is if f(x) = (x - b)^2 - 6
Now what you have done is eliminate answers a and b.
The much harder part is dealing with the 8. Is it plus or minus. It turns out that the reason this is more complex is that it is anti intuitive.
- 8 means move right.
+ 8 means move left - just exactly the opposite of what you have been taught about a number line.
Since the graph is moving right, then you use -8
The answer becomes
y = (x - 8)^2 - 6 which is D
The steps of drawing a circumscribed circle are the following:
1) Draw the 3 perpendicular bisectors of the sides. They all meet at the circumcenter.
Drawing only 2 is enough, since their intersection point is still the circumcenter.
2) We open the compass from the circumcenter to any of the vertices, then we draw the circle.
Among our choices, (b) is not an issue, as explained above.
(c) has to do with drawing the inscribed circle, but nothing to do with the circumscribed circle.
(d) The angle bisectors meet at the center of the inscribed circle. Again, these have nothing to do with the circumscribed circle.
What may have happened, is only (a).
The answer is 20 because if you add 14 plus 7 equals 21 but if you round it to the nearest tenth is 20