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gtnhenbr [62]
3 years ago
11

For the function {(2, 4), (3, 5), (4, 6), (5, 7)}, what is the domain?

Mathematics
1 answer:
sammy [17]3 years ago
6 0

Answer: Domain:

{

1

,

3

,

4

,

6

,

8

}

Step-by-step explanation:

The domain is the set of all the values of

x

.

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Find the slope of the line passing through the points 3, 4 and 8 , -3 .
olga55 [171]

Answer:

m= -7/5

Step-by-step explanation:

(x1,y1)=(3,4)

(x2,y2)=(8, -3)

Use the slope formula:

m = y2 - y1

x2 - x1

(-3-4)/ (8-3)

= -7/5

8 0
3 years ago
Express y = -2x² - 4x + 7 in the form of perfect square and find the maximum points.
Marat540 [252]

Answer:

<em>Maximum: (-1,9)</em>

Step-by-step explanation:

<u>Vertex form of the quadratic function</u>

If the graph of the quadratic function has a vertex at the point (h,k), then the function can be written as:

y=a(x-h)^2+k

Where a is the leading coefficient.

We are given the following function:

y =-2x^2-4x+7

To find the vertex, we need to complete squares. First, factor -2 on the first two terms:

y =-2(x^2+2x)+7

The expression in parentheses must be completed to represent the square of a binomial. Adding 1 and subtracting 1:

y =-2(x^2+2x+1- 1)+7

Taking out the -1:

y =-2(x^2+2x+1)+2+7

Factoring the trinomial and operating:

y =-2(x+1)^2+9

Comparing with the vertex form we have

Vertex (-1,9)

Leading coefficient: -2

Since the leading coefficient is negative, the function has a maximum value at its vertex, i.e.

Maximum: (-1,9)

3 0
2 years ago
!Can some1 help! !Help FAST!
NemiM [27]

Answer:

4y-9

Step-by-step explanation:

y is the number, 4 times the number = 4y

so 4y-9

4 0
3 years ago
Read 2 more answers
Factor 1 - 2.25x^8.
sleet_krkn [62]
<span>1 - 2.25x</span>⁸ =
1² - (1.5x⁴)² =
(1 + 1.5x⁴)(1 - 1.5x⁴)
5 0
3 years ago
Read 2 more answers
Write each polynomial function in standard form , classify it by degree and determine the end behavior of its graph Y=12-x^4
Dmitry_Shevchenko [17]
In standard form, zero is always on the right:
y = 12 - x^4
y + x^4 - 12 = 0 

End behavior: 
As x approaches ∞, y approaches -∞
As x approaches -∞, t approaches -∞
4 0
3 years ago
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