MATHEMATICS HIGH SCHOOL

(–2, –3) is the image produced by applying the composition T -2.4 rx to a point. What are the coordinates of the preimage?A.
(0, –1)
B.
(0, 1)
C.
(3, 4)
D.
(0, 7)

Answers

Answer 1
Answer:

Answer:

D. (0,7)

Step-by-step explanation:

We are given that,

The point (-2,-3) is transformed by the composition T_(-2,-4)\circ R_(x).

That is, the point is first reflected across x-axis and then translated 2 units to the left and 4 units up.

So, the rule for the transformation is (x,y) → (x,-y) → (x+2,-y+4)

Thus, the image of (-2,-3) is given by,

(-2,-3) → (-2,3) → (-2+2,3+4) = (0,7)

That is, the image of (-2,-3) after transformation is (0,7).

So, option D is correct.

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On average Exante Express trains are 50km/hr faster than Paral passenger trains. A Paral passenger train requires 60% more time then Exante train to travel 1800 km from Matsay to Rawindi. Calculate average speed of each train. Calculate time it takes for each train for the journey.

Answers

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Solve the equation: 9x − 2 = 4(x + 3)14

13


14

9


10

5


14

5

Answers

9x − 2 = 4(x + 3)
Use PEMDAS
9x - 2 = 4(x + 3)
9x - 2 = 4x + 12
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subtract 4x from both sides
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divide both sides by 5
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Hope this helps!

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Answers

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Answers

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Answers

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