To investigate the relationship between yield of potatoes, y, and level of fertilizer application, x, a researcher divides a field into eight plots of equal size and applies differing amounts of fertilizer to each. The yield of potatoes (in pounds) and the fertilizer application (in pounds) are recorded for each plot. The data are as follows: x |1 1.5 2 2.5 3 3.5 4 4.5 25 31 27 28 36 35 32 34 Construct a scattergram for the data. What does the scattergram suggest about the relationship between x and y? a. b. C. Find the least squares estimates of Bo and B1. d. Plot the least squares line on your scattergram. Does the line appear to fit the data well?

Q: Solve for v. 4+ v/5.12 = 8

A:

Q: What is the area of triangle bounded by the x-axis, the y-axis, and the line y=−4x+4?

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Q: 20x3 dx 2. JT2+1 Vx2+1

A: Explanation of the answer is as follows

Q: Evaluate. 4 10x + 1 dx 5x2 + x %3D

A: This is the definite integral, firstly integral will be calculated after that limit will put

Q: 4 dx 2 + x3 1

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Q: If BG bisects ZDGA, find the measure of each numbered angle. 1 B 115° 104 24° 2. 3

A:

Q: %3D 3.) [2x +3y =-6 12x-16=-8y 2x+3y m b%3= 12x-16 =-8y m%3D b%3D

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Q: 2. (-2, 3) and (2, -1) m%3D X,- X, 1- 2 -

A: Given that (-2,3) and (2,-1)

Q: arg (3 – 2i) =

A:

Q: R =  C − S t ; S

A: R=C-St

Q: Expand completely. (3z 1) ar + ba + cr+ da² + ex + ƒ %3D d = and f=

A: Given 3x-15=ax5+bx4+cx3+dx2+ex+f To do  Find the value of a, b, c ,d ,e and f in the expansion

Q: raically 7) 2x 3 +16x² = 40x %3D

A: We subtract 40x then factor out GCF 2x.