Determine the least-square error when the line y = 
x + 3 is used to approximate the data points 
and (4, 6).
Fill in the blank(s) with the appropriate word(s).
6.70
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Suppose that the functions f and g and their derivatives with respect to x have the following values at the given values of x. Find the derivative with respect to x of the given combination at the given value of x.
, x = 3
A. - 
B. 
C. 
D. 
Write the rate as a unit rate.2100 people in 50 buses
A. 0.024 person/bus B. 420 people/bus C. 42 people/bus D. 2050 people/bus
Solve the system by the method of your choice. Identify systems with no solution and systems with infinitely many solutions, using set notation to express their solution sets. 2x - 7y = 5-6x + 21y = -20
A. 
B. {(3, 4)}
C. {(x, y)| 2x - 7y = 5}
D. ?
Use a graph to determine whether the given function is continuous on its domain. If it is not continuous on its domain, list the points of discontinuity.
?
?
A. The point of discontinuity: 2. B. The function is continuous on its domain. C. The point of discontinuity: 0. D. The points of discontinuity: 4, 0. E. The points of discontinuity: -2, 0.