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Chapter 8: Q1. (page 410)

An equation whose graph is a line is called a(n) ?.

Short Answer

Expert verified

The complete statement would be: An equation whose graph is a line is called a linear equation.

Step by step solution

01

Step 1. Given Information.

An incomplete statement: An equation whose graph is a line is called a(n)?.

02

Step 2. Explanation.

We know that an equation whose graph is a line is known as a linear equation.

Therefore, the correct word for our given statement would be 鈥渓inear equation鈥�.

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Most popular questions from this chapter

Represent the relation as a graph and as a mapping diagram. Then tell whether the relation is a function. Explain your reasoning.

-2,-1,0,2,2,3,-2,-4

The height of a person is measured every year from the age of 1 year to the age of 50 years.

  1. Do the ordered pairs age,height represent a function? Explain.
  2. Would you expect the ordered pairs height,age to represent a function? Why or why not?

Graph the equation.

x=-1.

To form the inverse of a relation represented by a set of ordered pairs, you switch the coordinates of each ordered pair. For example, the inverse of relation. 1,2,3,4,5,6is2,1,4,3,6,5. Give an example of a relation that is a function, but whose inverse is not a function.

A skydiver uses an altimeter to track altitude so that he or she knows when to open the parachute. The altimeter determines altitude by measuring changes in atmospheric pressure. The graph below shows how pressure varies with altitude as a skydiver falls from 12,000 feet to ground level. (The elevation of the ground is assumed to be 0 feet with respect to sea level.)

  1. As a skydiver fall, does the atmospheric pressure increases or decreases?
  2. Describe the domain and range of the relation represented by the graph.
  3. Is the relation a function? Explain.
  4. Some altimeters can sound an alarm warning a skydiver to open the parachute when the altitude falls to a certain level. If the alarm is set to go off at an altitude of 3000 ft, approximately what atmospheric pressure will trigger the alarm?
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