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ira [324]
3 years ago
8

What is the vertex and axis of symmetry for y=4x^2-12x+9?

Mathematics
1 answer:
VLD [36.1K]3 years ago
4 0

Answer:

axis of symmetry   x=3/2

vertex  (3/2, 0)

Step-by-step explanation:

to find the axis of symmetry we use h = -b/2a

where ax^2 + bx+c


h = -(-12)/2(4)

h= 12/8

h = 3/2

the axis of symmetry is x = 3/2

the x coordinate of the vertex is h x=3/2

to find k, the y coordinate of the vertex, substitute x=3/2 into the equation

y=4x^2-12x+9

y=4(3/2) ^2-12(3/2)+9

 = 4 (9/4)  - 6*3 +9

  = 9-18+9

  = 0


the vertex (3/2, 0)

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For f(x) = 3x + 1 and g(x) = x2 – 6, find (f + g)(x)
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3 years ago
The speed of the current in a river is 6 mph. A ferry operator who works that part of the river is looking to
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Answer:

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Step-by-step explanation:

Let he speed of the boat on the lake is x.

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7 0
2 years ago
Maria bought a bag of flour so that she can make muffins it has a mass of 2.26 kg Shanice 450 g of flour to make one batch of mu
xenn [34]

Answer:

10 grams or 0.010kg

Step-by-step explanation:

The mass of the bag used to make flour is 2.26 kg = 2260 grams

Now, in order to find out how many badges she made, we would need to divide the weight of the bag by the amount needed to make a badge.

Therefore: \frac{2260}{450}  = 5.02

We know now that the bag will make 5 batches and will have some left over. In order to find how much we used, we can multiply 5 * 450 = 2250.

Therefore, in order to make 5 batches, Maria used exactly 2250 grams of flour which in result left us with 10 grams of the bag.

Note: 2260 -2250 = 10 grams.

Subtract, in order to find how many you have left.

Hope this helps.

5 0
3 years ago
How do you slove this?
Anestetic [448]
What are you trying to find?
3 0
3 years ago
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