Tides go up and down in a 14-hour period. The average depth of a certain river is 7 m and ranges from 2 to 12 m. The variation can be approximated by a sine curve. Write an equation that gives the approximate variation y, if x is the number of hours after midnight and high tide occurs at 9:00 am.

the formula of a slope:

from a table we have

substitute:

the slope of f(x) is -1.

the graph of funcfion g(x) is a horizontal line. the slope of a horizontal line is equal 0. therefore the slope of g(x) is 0.

-1 < 0

8

step-by-step explanation:

just put √(2) * √(32) into a calculator. that will make the answer be 8.

greater than one

step-by-step explanation: