The term "elevation" is often used to describe the height of a place (such as a city, a mountain, or a valley) compared to sea level. For example, the city of Houston, Texas has
an elevation of 105 feet. The surface of the sea has an elevation of O feet. Some places are
below sea level, so their elevations are negative values.
1. The table shows the elevation, e, of several towns.
180
12.1
5.4
-5.4
-36
-180
fle)
0
Function / gives the vertical distance of each town from sea level. Both e and fle)
are measured in feet. Complete the table of values.
How many feet from sea level is a city at an elevation of 180 feet? *
4po

d

step-by-step explanation:

answer:

step-by-step explanation:

55.44 inches

step-by-step explanation:

part a. assuming a perfectly linear relationship, we can find the slope from the first two data points.

slope = m = (change in rainfall)/(change in years)

= (61.80 -62.33)/(2005 -2004) = -0.53/1 = -0.53

then the point-slope form of the equation of the line can be written as

y = m(x -h) +k . . . . . m = -0.53, (h, k) = (0, 62.33)

y = -0.53x +62.33 . . . x = years after 2004

part b. in 2017, x = 2017 -2004 = 13. then the predicted rainfall is

y = -0.53·13 +62.33 = 55.44 . . inches

the predicted rainfall in 2017 is 55.44 in.