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shusha [124]
3 years ago
6

What is the equation of this graph

Mathematics
1 answer:
Soloha48 [4]3 years ago
5 0

Answer:

Step-by-step explanation:

hello :

an equation of this graph is : f(x) = a(x-h)²+k when (h,k) the vertex

so : h=5 and k= -4

f(x) = a(x-5)²-4....... now calculate : a

the y- intercept is :  - 6.5 means : f(0) = - 6.5

put x=0 and f(x) = - 6.5

you have : -6.5 = a(0-5)²-4

-6.5 = 25a - 4

25a = -2.5   so : a= -2.5/25= 1/10

the equation is :

<h2>f(x) = (1/10)(x-5)²-4</h2>
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A red token is worth twice as much as an orange token. An orange token is worth 5 less a yellow token. A yellow token is worth 1
Romashka-Z-Leto [24]

Answer:

Step-by-step explanation:

Let r represent red token,

Let o represent orange token,

Let y represent yellow token

Let g represent green token,

A red token is worth twice as much as an orange token. It means that

r = 2o

An orange token is worth 5 less a yellow token. It means that

o = y - 5

A yellow token is worth 15 less than a green token. It means that

y = g - 15

A green token is worth half as much as a blue token. It means that

g = b/2

a blue token is worth B. Therefore, the worth of a yellow token in terms of B would be

Substituting g = B/2 into y = g - 5, it becomes

y = B/2 - 15

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3 years ago
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marishachu [46]

Answer: its the first answer choice

ANSWER:x^3 -9x^2+25x

7 0
3 years ago
Which of the following are point-slope equations of the line going through (3, 6) and (1, -2)? 
Assoli18 [71]
Here, first we need to calculate the slope of the line, 
m = y2 - y1 / x2-x1
m = 6 + 2 / 3 -1
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Second coordinate: y + 2 = 4 (x - 1)

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Are both 7 and -½ integers? why or why not?​
Tems11 [23]

Answer:

No. (-1/2) is not an integer

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(-1/2) is a fraction

4 0
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irina [24]

Answer:

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Step-by-step explanation:

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