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Ray Of Light [21]
3 years ago
13

Which quadratic regression equation best fits the data set?

Mathematics
2 answers:
g100num [7]3 years ago
7 0
The 4th selection is appropriate.

_____
Desmos.com has a wonderful graphing calculator. They also have apps for Android and iOS phones and tablets. Of course, your TI-83/84 or equivalent will do this, too.

liberstina [14]3 years ago
7 0

Answer:

D. y=1.87x^2-5.16x+10.54

Step-by-step explanation:

The data set is given by,

x                                               y

1                                               5.9

2                                              8.9

3                                              13.4

4                                              20.1

5                                              30.1

6                                              45.1

7                                              67.7

Using the regression calculator, we see that,

<h3>The quadratic equation that best fits the data is y=1.87x^2-5.16x+10.54 as shown below.</h3>

Thus, option D is correct.

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Equation parallel to y = 3x + 2 and passing through (1, 1)
Kisachek [45]

Answer:

y = 3x - 2

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = 3x + 2 ← is in slope- intercept form

with slope m = 3

Parallel lines have equal slopes, then

y = 3x + c ← is the partial equation

To find c substitute (1, 1) into the partial equation

1 = 3 + c ⇒ c = 1 - 3 = - 2

y = 3x - 2 ← equation of line

6 0
3 years ago
Help me with this ASAP
adelina 88 [10]

Answer:

2 to the power of 2 times three to the power of 2

3 to the power of 2 times 5 to the power of 2

6 to the power of 2 times 7 to the power of 3

7 to the power of 2 times 5 to the power of 3

3 to the power of 2 times 5 to the power 2 times 7 to the power of 2

Step-by-step explanation:

4 0
3 years ago
In the XY-plane, the X-axis contains all ordered pairs such that:
Fiesta28 [93]

Answer:

Option B

y coordinate is 0

Step-by-step explanation:

We have in two dimension rectangular system of coordinates with two mutually perpendicular lines called x and y axis.

X axis is the horizontal line and y the vertical line, the point of intersection of these two lines is called origin with x=0: y=0

To the right of origin, positive values are marked and left negative. Similarly for y axis, above origin positive values and below negative values.

Thus we have along x axis, y values to be 0

Hence any point on x coordinate will be of the form (a,0) where a can be any real number

So option B is right

3 0
3 years ago
Read 2 more answers
in a recent year one United States dollar was equal to about 82 Japanese yen how many Japanese yen are equal to $1,00 $1,000 $10
Yuki888 [10]
In a recent year, one United States dollar was equal to about 82 Japanese. How many Japanese yen are equal $100?$1,000?$10,000 
<span>Given is: </span>

<span>1 USD = 82 Japanese Yen   </span>

<span>Conversion: </span><span>

1.  100 USD x 82 JY / 1 USD = 8, 200 Japanese Yen</span> <span>
2.  1000 USD x 82 JY / 1 USD = 82, 000 Japanese Yen</span> <span>
3.  10, 000 USD x 82 JY / 1 USD = 820, 000 Japanese Yen</span> 
5 0
3 years ago
Factor the Expression completely<br> -16x^2-6x^4
denpristay [2]

Answer: -2x^2 (3x^2 + 8)

Step-by-step explanation: a^b+c =a^b a^c

1) -16x^2 - 6x^ x^2

2) Rewrite -16 as -2 * 8

2.a Rewrite -6 as -2 * 3

= -2 * 8x^2 - 2 * 3x^2x^2

3) facter out common term: -2x^2

= ur answer

7 0
2 years ago
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