Hiker's Elevation 3,000-
Hiking The scatter plot shows a hiker's elevation
above sea level during a hike from the base to the
top of a mountain. The equation of a trend line for
the hiker's elevation is y = 9.23x +686, where x
represents the number of minutes and y represents
the hiker's elevation in feet. Use the equation of the
trend line to estimate the hiker's elevation after 140
minutes.
levation (ft)
1,500-
After 140 minutes, the hiker's elevation will be about
(Round to the nearest whole number as needed.)
feet above sea level.
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Asystem of linear equations with more equations than unknowns is sometimes called an overdetermined system. can such a system be consistent? illustrate your answer with a specific system of three equations in two unknowns. choose the correct answer below. a. yes, overdetermined systems can be consistent. for example, the system of equations below is consistent because it has the solution nothing. (type an ordered pair.) x 1 equals 2 comma x 2 equals 4 comma x 1 plus x 2 equals 6 b. no, overdetermined systems cannot be consistent because there are fewer free variables than equations. for example, the system of equations below has no solution. x 1 equals 2 comma x 2 equals 4 comma x 1 plus x 2 equals 12 c. yes, overdetermined systems can be consistent. for example, the system of equations below is consistent because it has the solution nothing. (type an ordered pair.) x 1 equals 2 comma x 2 equals 4 comma x 1 plus x 2 equals 8 d. no, overdetermined systems cannot be consistent because there are no free variables. for example, the system of equations below has no solution. x 1 equals 2 comma x 2 equals 4 comma x 1 plus x 2 equals 24