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nikklg [1K]
3 years ago
12

Use technology to determine an appropriate model of the data. (-1,0), (1,-4), (2,-3), (4,5), (5,12)

Mathematics
2 answers:
goblinko [34]3 years ago
5 0
An appropriate model is a quadratic, y=0.999x²-1.999x-3.

The r² value is 1, so it is a perfect fit.

alukav5142 [94]3 years ago
4 0

Answer:

The required quadratic regression model is y=x^2-2x-3.

Step-by-step explanation:

The given data points are (-1,0), (1,-4), (2,-3), (4,5), (5,12). Plot these points on a coordinate plane.

From the graph it is clear that the given data forms a U-shaped curve. It means we have to find the quadratic regression model.

The general form of quadratic regression model is

y=ax^2+bx+c

Using technology we get,

a=1,b=-2,c=-3

The required quadratic regression model is

y=x^2-2x-3

Therefore the required quadratic regression model is y=x^2-2x-3.

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If `f(x)=x^2-81` and `g(x)=(x-9)^(-1)(x+9)`, find `g(x)xxf(x)`.
marshall27 [118]

<u>Answer:</u>

g ( x ) * f ( x ) = ( x + 9 ) ^ 2

<u>Step-by-step explanation:</u>

We are given the following two functions and we are to find g(x) * f(x):

f(x)=x2-81

g(x)=(x - 9)^{-1} ( x + 9)

g(x)*f(x)=x^{-81} * \frac{x+9}{x-9}

g ( x ) * f ( x ) =\frac{(x+9)(x-9)(x+9)}{x-9}

g ( x ) * f ( x ) = ( x + 9 ) ( x + 9 )

g ( x ) * f ( x ) =( x + 9 ) ^ 2

3 0
3 years ago
Read 2 more answers
Which set of rational number is correct ordered from least to greatest
MrMuchimi
B is correct answer
3 0
3 years ago
The length of a rectangle is increased by 25% , but the width of the rectangle is decreased by 25%. By what percent was the rect
Yuki888 [10]

The rectangle's area decreased by 19%.

Length = L

Breadth = B

Original area = L x B

New area = A = L x (1 + 25%) x B x (1 - 25%)

A = L x B x 0.25 x 0.75 = L x B x 1.05

Therefore the area of the rectangle has decreased by 19%.

To find the location of a rectangle, multiply its width by means of its height. If we understand the sides of the rectangle which are different lengths, then we have each the height and the width.

The perimeter P of a rectangle is given through the system, P=2l+2w, wherein l is the period and w is the width of the rectangle. The area A of a rectangle is given by means of the method, A=lw, in which l is the duration and w is the width.

Learn more about rectangle here brainly.com/question/25292087

#SPJ4

6 0
1 year ago
I BEG YOU TO PLEASE HELP ME !!!
miv72 [106K]

Answer:

A is the correct answer and ur welcome

4 0
2 years ago
Read 2 more answers
Solve for x.<br><br> 6 x - 2 / 4 = x - 2<br><br> x =
gtnhenbr [62]

Answer: x = 1/4

Explanation: I did the math myself, but answer might be wrong...

8 0
2 years ago
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