1. For the period 1998-2003, the number y of cassettes (in millions) in manufacturers' shipments can be modeled by the function y = 4.3x2 - 50.4x + 162 where x is the number of years since 1998. In what year
were 50 million cassettes shipped?

341

step-by-step explanation:

all you have to do is 9x31 (which equals 279) and then 20x31 (which equals 620). then you have to subtract. 620-279=341.

f(x) = y

f(-3) = -5

step-by-step explanation:

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