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Ilia_Sergeevich [38]
3 years ago
9

Please help! I will give Brainliest!

Mathematics
2 answers:
lubasha [3.4K]3 years ago
8 0

Answer:

a

Step-by-step explanation:

3/15 simplifies to 1/5

andrew-mc [135]3 years ago
3 0
A because 3/15 simplifies to 1/5
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What is the constant of variation,k, of the direct variation,y=kx,through (5,8)
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we know that

A relationship between two variables, x, and y, represent a direct variation if it can be expressed in the form \frac{y}{x}=k or y=kx

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in this problem we have

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so

x=5\\y=8

substitute

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If a quadratic function has x-intercepts at 2 = -
PolarNik [594]

Complete question is;

If a quadratic function has x-intercepts at x = -3 and x = -1, one possible equation of the function would be y = (x + 3)(x + 1), a graph that first

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So then, if a quadratic function has x-intercepts at x = -2 and x = 2

a. What is the equation of this quadratic function? Explain your reasoning

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Answer:

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Vertex: (0, -4)

Step-by-step explanation:

The x-intercepts are at x = -2 and x = 2. Thus, the equation is;

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y = x² + 2x - 2x - 4

y = x² - 4

Now,the coordinates of the vertex will be (h, k)

Where;

h = -b/2a

k is the value of y at x = h

From y = x² - 4, h = 0

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