21. Use the table, which shows the number of pounds of skim milk, y, consumed per
person in the United States in year x. Let x represent the number of years since
1980.
Х
1980
1985
1990
1992
1995
1996
Y
26.9
27.4
42.8
46.2
53.9
55.7
a. Use the model y = 2x + 23 to estimate the number of pounds
consumed in 1994. Is this linear interpolation or linear
extrapolation?
b.
Use the model y = 2x + 23 to estimate the number of pounds consumed in
1999. Is this linear interpolation or linear extrapolation?

Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?

Find the value of x. round the length to the nearest tenth

Someone answer asap for ! a ball is rolled down a ramp. the height, f(x), in meters, of the ball x seconds after it is released is modeled by the function f(x) = x²- 10x + 25 for all values of x from 0 to 5. which statement about the ball is true? a. the maximum height of the ball is 5 meters b. the height of the ball increases from 0 to 5 meters above the ground. c. the ball has traveled 5 meters when it reaches the bottom of the ramp. d. the ball has been traveling for 5 seconds when it reaches the bottom of the ramp