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kap26 [50]
3 years ago
7

-0.2x^2+0.9x+0.6=yWhat's the vertex form for this equation?​

Mathematics
1 answer:
hjlf3 years ago
6 0

Answer:   y = -0.2(x - 2.25)² + 1.6125

<u>Step-by-step explanation:</u>

y = -0.2x^2 + 0.9x + 0.6\\\\y - 0.6 = -0.2x^2 + 0.9x\\\\y - 0.6 =-0.2(x^2-4.5x)\\\\y-0.6+\underline{(-0.2)(2.25)^2}=-0.2(x^2-4.5x+\underline{2.25^2})\\\\y-0.6-1.0125=-0.2(x-2.25)^2\\\\y-1.6125=-0.2(x-2.25)^2\\\\y=-0.2(x-2.25)^2+1.6125

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sergiy2304 [10]

After reflected over  the triangle the point a become A = (-1,-6). The option c is correct.

According to the statement

we have given that the a triangle ABC at the points A=(1,6) B=(-3,5) C=(7,1), and we have to find the points of a when the triangle is first reflected over the y axis.

So, For this purpose

we know that the when the triangle is at the x axis then the point A is A=(1,6).

But when the triangles reflected over the y - axis then the point A goes to the negative side of the graph. In other  words whole of the triangle shift to the negative side of the graph. That's why the point become negative.

So, The option c is correct. After reflected over  the triangle the point a become A = (-1,-6)

Learn more about Triangle here

brainly.com/question/1675117

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4 0
1 year ago
Sin xy\xkhi ( x , y )-&gt;(0, 3)
MakcuM [25]

Answer:

sin xy / x = 0

Step-by-step explanation:

thay x = 0 và y = 3 vào sin xy / x ta có:

sin (0*3) / 0 = sin (0) = 0

8 0
2 years ago
Which polygons are congruent?
bonufazy [111]
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3 years ago
Please help ASAP!! please no thank you have a great day!
Archy [21]

1 and 5 are yes and the rest are no

7 0
3 years ago
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Sergeeva-Olga [200]

Answer:

b. 3/8

Step-by-step explanation:

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HHT

HTH

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8 0
3 years ago
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