Someone please help me!

1 answer:

6 0

The standard form of a parabole is: (y-k) = a(x-h)², Where (h , k) are the coordinates of the vertex
In the example Vertex (3,1) ,
so (y-1) = a(x-3)². (a)
Now let's calculate a. The y-intercept coordinates(0 , 10), Replace in (a) x by 0 & y by 10:
(10-1) = a(0 - 3)²
9 = 9a and a=1
The equation becomes : y-1 = (x-3)², Expand (y-1) = x²-6x+9
and finally y = x² - 6x +10 (ANSWER C)

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*15 points* I need a proper explanation please.

uranmaximum [27]

To find our solution, we first write the equation in the following form:
$y = ax + b$

In this formula a represents the slope, therefore:
$y = - \frac{1}{5} x + b$

Because the line passes through the point P(5, -7), we can fill in the coordinates of this point in the formula and we get the following:
$- 7 = -\frac{1}{5} \times 5 + b$
$- 7 = -1 + b$
Now, add up 1 to both sides and we get
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So the formula will be:
$y = - \frac{1}{5} x - 6$

Bringing x to the other sides gives us:
$\frac{1}{5} x + y = -6$
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$x + 5y = -30$
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3 years ago

Question

tatiyna

Answer:

Wes

Step-by-step explanation:

This represents a positive correlation, meaning that when x increases, so does y. Because of x, y increases meaning that Wes is correct

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Maria flipped a coin 60 times, and the coin came up tails 32 times. What is the relative frequency of the coin turning up heads

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60 -32 = 28

The coin landed on heads 28 times.

Relative frequency = heads/ total flips

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Round the answer as needed.

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