Question

Suppose the number of households (in millions) that have at least one microwave can be estimated by the equation y = 0.9x + 84, where x is the number of years after 1999.

a. Use this equation or a graph of it to complete the ordered pair
b. Write a sentence explaining the meaning of the answer found in part (a).
c. If this trend continues, how many households will have at least one microwave in 2014?

Answer 1

To complete the ordered pair, substitute the value of x into the given equation. When x = 2006, the ordered pair is (2006, 90.3).

Step-by-step explanation:

To complete the ordered pair, we need to substitute the value of x into the given equation. According to the equation y = 0.9x + 84, the value of x is the number of years after 1999. Therefore, if we want to find the number of households that have at least one microwave in a particular year, we need to subtract 1999 from that year to get the value of x.

For part (a), the question asks for the ordered pair when x = 2006. To find y, we substitute x = 2006 into the equation: y = 0.9(2006 - 1999) + 84 = 0.9(7) + 84 = 6.3 + 84 = 90.3.

So, the ordered pair when x = 2006 is (2006, 90.3).