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rosijanka [135]

3 years ago

10

The image of a point is B'(-4, 11). A 180° clockwise rotation was performed to get this image. What were the coordinates of the

pre-image?
(4, -11)
(11, 4)
(-11, -4)
(4, 11)

2 answers:

Ratling [72]3 years ago

8 0

Answer:

A

Hope this helps

dusya [7]3 years ago

4 0

Rotation by 180° negates both coordinates.
.. B = (4, -11) . . . . . . . corresponding to the 1st selection

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The function g(x) = –3x2 – 36x – 60 written in vertex form is g(x) = –3(x + 6)2 + 48. Which is one of the transformations applie

nikklg [1K]

The general vertex form is this:
v(x) = a (x-h)2 + k
where (h,k) is the coordinates of the of vertex.
and a indicates the widening or shrinking of the function compared to another parabolic function. If a become bigger, the graph becomes narrower. If a becomes negative, the graph is reflected over the x-axis.

Comparing f(x) = x2 with g(x) = -3(x+6)2 + 48, we have the following transformations:
The graph is reflected over the x-axis
The graph is made narrower.
The graph is shifted 6 units to the left.
The graph is shifted 48 units up.

From the choices we only have:
<span>The graph of f(x) = x2 is made narrower</span>

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Shalnov [3]

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vova2212 [387]

An obtuse triangle is formed if there is an angle that has a measure of more than 90 degrees. You can determine if an obtuse angle is formed by two sides of a triangle if it meet this condition:

Let a and b be two sides of a triangle and c is the longest side:
$a^{2} + b^{2} \ \textless \ c^{2}$

So taking your given:

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Find two consecutive even integers such that twice the smaller is 16 more than the larger

drek231 [11]

<u>Define x:</u>
Let one of the numbers be x.
The other number is x + 2

<u>Construct equation:</u>
<span>twice the smaller is 16 more than the larger
</span>⇒2x = x + 2 - 16

<u>Solve x:</u>
2x = x + 2 - 16
x = -14

<u>Find the two numbers:</u>
Smaller number = x = -14
Larger number = x + 2 = -12

Answer: The two numbers are -14 and -12

6 0

3 years ago

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