Which of the following rules best describes the matrix belowa. dilation of scale factor 2
b. reflection over the y-axis
c. reflection over the line y = x
d. translation 1 unit left and 1 unit up
Which of the following rules best describes the matrix below - 1

Answers

Answer 1
Answer:

Answer: D

Step-by-step explanation:

d. translation 1 unit left & 1 unit up

right on edg


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Answers

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The equation of a parabola is given.y=−14x2+4x−19



What are the coordinates of the vertex of the parabola?



Enter your answer in the boxes.

Answers

Answer:

vertex (  (1)/(7), (131)/(7)).

Step-by-step explanation:

Given : The equation of a parabola is given.

       y=−14x²+4x−19

To find  : What are the coordinates of the vertex of the parabola.

Solution : We have given that

y = −14x²+4x−19

we will be "completing the square" .

Factor out -14 to make leading coefficient 1

y = -14 (x^(2) -(2x)/(7) +(19)/(14))

Add and subtract ((-1)/(7)) ^(2)

y = -14 (x^(2) -(2x)/(7) +(19)/(14)+(-1)/(7)) ^(2) - ((-1)/(7))^(2)) .

Complete the square

y = -14 ( (x -(1)/(7)) ^(2) +(19)/(14)- ((-1)/(7))^(2)).

y = -14 ( (x-(1)/(7)) ^(2) -(131)/(7)

Standard form of parabola vertex form y  = a(x - h)²+ k,

Where, ( h, k)  are vertex

On comparing a = -14 , h= (1)/(7), k =  (131)/(7)

Therefore, vertex (  (1)/(7), (131)/(7)).

The coordinates are 8, -3.

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Answers

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Answers

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Step-by-step explanation:

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Answers

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Step-by-step explanation: