Answer:
Step-by-step explanation:
the x-3 is to shift a normal parabola 3 to the right
the +1 is to lift the top up by one
the -1/9 is to compress and swapt it around
Answer:
y =- (x - 3)² + 1
Step-by-step explanation:
The equation of a parabola in vertex form is
y = a(x - h)² + k
where (h, k) are the coordinates of the vertex and a is a multiplier
Here (h, k) = (3, 1) , thus
y = a(x - 3)² + 1
To find a substitute another point on the graph into the equation
Substitute (1, ) into the equation
= a(1 - 3)² + 1 ( subtract 1 from both sides )
- = 4a ( divide both sides by 4 )
a = -
y = - (x - 3)² + 1 ← equation of parabola in vertex form
h -1(x) = -3/2 x - 6
h -1(x) = -2/3 x + 9
h -1(x) = -2/3 x - 6
cone. What is the expression for the volume of the pyramid in terms of the radius r of the cone?
base area for cone= B
base area for pyramid= B, 3r heigh
A. V = pi r³
B. V = 1/3 pi r²
C. V = 2 pi r²
D. V = 1/9 pi r³
E. V = 3 pi r³
The expression for the volume of the pyramid in terms of the radius r of the cone is . So, option A is correct.
The cone is a three-dimensional figure with a vertex and a flat base.
The volume of a pyramid is given by the formula:
Given that:
The base area of the pyramid = B
The height is 3r
The base area of the pyramid is the same as that of the cone.
The base of the cone =
The volume of the pyramid is calculated as:
V =
Therefore, the volume of the pyramid is . So, option A is correct.
Learn more about pyramid here:
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Answer:
The answer is A. V=pi r³
Step-by-step explanation:
:)