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saw5 [17]
3 years ago
7

Correct? ...Which quadratic regression equation best fits the data set?

Mathematics
1 answer:
never [62]3 years ago
6 0
1) The second selection looks correct, as it is the only one with a minimum at a positive x value, and a y-intercept more than 109.

2) Your choice cannot be correct, as it corresponds to a function with a minimum near x = 1.278/(2*0.056) ≈ 11.4. The function is obviously decreasing at that point, so is not a minimum there. My calculator shows the 4th selection is best.

You might be interested in
Can someone explain to me the letter or sign or variable after "Y"
sattari [20]

Answer:

It is a symbol used to denote an angle (or something else)

Step-by-step explanation:

Alpha(α) is a greek letter, it's one of the letters used to denote angles. Other such letters you'll often see in math are Beta (β), Gamma (γ), Delta (δ), these are used to denote angles. Also, pi (π), which is a mathematical constant. The letters phi (φ) and theta (θ) are also used for angles very often, especially in formulas. You'll see some of these in physics too.

It can be used as variable too, not necessarily for angles, but it's mostly used for them.

7 0
3 years ago
AREA ADDITION AND SUBTRACTION URGENT?
Andrews [41]
The area of the yellow region is
48.29 ^{2}

8 0
3 years ago
How many units the function y = |x - 8| is translated from the parent function?
PtichkaEL [24]

Answer:

8 Units, let me know if you didn't understand anything.  

Step-by-step explanation:

Translation is the simple movement of just left, right, up or down.  when dealing with the absolute value function here are the transformations.

A|B(x - C)| + D where A is the vertical stretch that multiplies all y values by A save where y=D.  B is the horizontal shrink, so you divide all x  values by B except for where x=C.  C is the horizontal shift, which is a translation.  C makes ALL points on the graph move to the right by C or if C is negative it moves them to the left.  it could also look like |x + C|.  keep in mind, +C is actually -C because - -C = C.  D shifts up and down, so it is also a translation.  if D is positive it moves up and if D is negative it moves down.

Nowthe only transformation in your problem is -8, which is a horizontal shift to the right.  so the graph moves 8 to the right.  There is your answer, 8 units.

6 0
3 years ago
What is the constant of proportionality in the equation y=2.5 times x? This is a khan academy question.
devlian [24]

Answer:

2.5

Step-by-step explanation:

2.5 is the constant of proportionality

8 0
4 years ago
Find the area of this parallelogram. be sure to include the correct unit in your answer
gulaghasi [49]

Answer:

84ft

Step-by-step explanation:

The formula to find the area of a parallelogram is b x h.

The base is 14ft and the height is 6ft. Multiply these together.

14 x 6 = 84ft

6 0
3 years ago
Read 2 more answers
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