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andreev551 [17]
3 years ago
9

Which of the following lines has a negative slope? (Photo Attached)

Mathematics
2 answers:
olga2289 [7]3 years ago
6 0
The answer would be number three because the slope is going towards the bottom of the graph
OLEGan [10]3 years ago
3 0

Answer:

number 3

Step-by-step explanation:

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Y and x have a proportional relationship, and y = 12 when x = 5. What is the value of y when x = 8?
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When x = 8 y = 15

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Hope this helped!
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Which one is it idk
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Which is the graph of the function f(x) = x2 + 2x + 3?
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3 years ago
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Please help me with these problems
S_A_V [24]

Answer:

1.a=2

2.  C  x=2  and x=-3

Step-by-step explanation:

The standard form for the quadratic function is  

ax^2 +bx+c

so  we need to rewrite the function to be in this form

2x^2 -10 = 7x

Subtract 7x from each side

2x^2 -7x-10 = 7x-7x

2x^2 -7x-10 = 0

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2.  The quadratic formula is

-b ± sqrt(b^2 -4ac)

----------------------------

2a


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Lest get the equation in proper form

2x^2 + 2x-12 = 12-12

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Lets substitute what we know

-2 ± sqrt(2^2 -4(2)(-12))

----------------------------

2(2)

-2 ± sqrt(4+96)

----------------------------

2(2)

-2 ± sqrt(100)

----------------------------

4

-2 ± 10

----------------------------

4

-2 + 10               -2-10

-----------   and  --------------

4                             4

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2  and -3

8 0
3 years ago
3. Find all the zeroes of the equation,
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Answer:

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7 0
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