Solve the problem.Consider the following data on the growth of cactus grafts under controlled conditions. 
Find the regression line y = mx + b.
A. y = 13x + 8.19
B. y =1.50 x + .7
C. y = -2.10x + .2
D. y = 1.33x + .21
Answer: D
Mathematics
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A. No B. Yes
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Provide an appropriate response.Find the slope of the line passing through the points (3, 9) and (2, -5).
Fill in the blank(s) with the appropriate word(s).
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Find the unknown length in the right triangle. If necessary, approximate the length to the nearest thousandth.
A. 689 mi B. 26.249 mi C. 344.5 mi D. 18.5 mi
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Provide an appropriate response.In the linear equation, y = mx + b, m is the 
of the equation.
A. slope B. y-intercept C. x-intercept D. range
Mathematics