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Answer:
The correct option is c.
Step-by-step explanation:
The regression line representing the price of very high quality diamonds is:
![y = 20312\cdot x - 5939](https://tex.z-dn.net/?f=y%20%3D%2020312%5Ccdot%20x%20-%205939)
It is provided that a diamond seller lists a very high quality diamond weighing 0.8 carats at a price of $9,999.
Compute the predicted price of the diamond weighing 0.8 carats as follows:
![\hat y = 20312\cdot x - 5939](https://tex.z-dn.net/?f=%5Chat%20y%20%3D%2020312%5Ccdot%20x%20-%205939)
![=( 20312\times 0.8) - 5939\\\\=10310.60](https://tex.z-dn.net/?f=%3D%28%2020312%5Ctimes%200.8%29%20-%205939%5C%5C%5C%5C%3D10310.60)
The predicted price of the diamond weighing 0.8 carats is $10,310.60.
In regression, the difference amid the observed-value of the dependent-variable (y) and the predicted-value (
) is known as the residual (e).
Compute the residual value as follows:
![e=y-\hat y](https://tex.z-dn.net/?f=e%3Dy-%5Chat%20y)
![=9999-10310.60\\\\=-311.60](https://tex.z-dn.net/?f=%3D9999-10310.60%5C%5C%5C%5C%3D-311.60)
The residual value is -$311.60.
Thus, it can be concluded that the model over-predicts the price of this diamond because the residual is negative.
The correct option is c.
Answer:
4x²+12x+9
Step-by-step explanation:
1. 2x times 2x = 4x²
2. 2x times 3 = 12x
3. 3 x 3 = 9 or 3² also equals 9
You can graph multiple equations in one plot by merely superimposing them. You plot the x values against the corresponding y values. Usually, you are given an equation in this form y=f(x), where f(x) is a polynomial containing a variable of x. You assign arbitrary values of x, to get the y values and plot them together as one data point.
The point at which the graphs intersect each other is the solution of the problem.
Step-by-step explanation:
3. mid point
4. vertically opposite angles
5. SSA rule
6. alternate angles
8. midpoint p
9. AP/AB = 1/2 = PQ/BC