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2 answers:
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Answer:
The answer to your question is below
Step-by-step explanation:
A) f(x) = x² + 4x + 1
Find the vertex
y = x² + 4x + 1
-Subtract 1 in both sides
y - 1 = x² + 4x
-Complete the perfect trinomial square in the right side
y - 1 + (2)² = x² + 4x + (2)²
-Simplify
y - 1 + 4 = (x + 2)²
y + 3 = (x + 2)²
-Find the vertex
V = (-2, -3)
B)
f(x) = x²
g(x) = (x - 4)² - 2 See the picture below
Shifted right 4 units
Shifted down 2 units
Answer:
Approximately 7.3%.
Step-by-step explanation:
What is percentage increase?
.
For this question:
,
, and
needs to be found.
Let .
.
Assume that . Multiply both sides of the equation by
:
.
Add to both sides of the equation:
.
.
In other words, the initial percentage is approximately 7.3%.