Download p.272 Absolute Value 1. Ben`s bank account balance is $100. Jerry`s

p.272 Absolute Value
1. Ben’s bank account balance is $100. Jerry’s bank account balance is -$1000.
a. Who has less debt?
b. Who has more debt?
c. What integer would fix the greatest debt?
2. Bob bought a gadget that measures tire pressure. The gadget considers a tire to be flat when the tire pressure is
measured at -10 pounds per square inch. The gadget warns that a tire will pop if the pressure is measured at 10
pounds per square inch. Bob measures the pressure of various tires with the gadget at -8 psi, 5 psi, -3 psi, -4 psi,
0 psi.
a. If Bob graphed these pressures on a number line, what number would represent normal pressure?
b. Order the pressure of the tires in order from least to greatest according the amount they are away from
normal pressure.
3.
A doctor is explaining blood pressure to a patient using a number line. The doctor specifically shows high blood
pressure, normal blood pressure, and low blood pressure.
a. What number on a number line would represent normal blood pressure?
b. What numbers on a number line would represent high blood pressure?
c. What numbers on a number line would represent low blood pressure?
4. Perfect vision is called 20/20. Mr. Evans’ vision is -3.75. Mrs. Evans’ vision is +2.25.
a. How far from perfect vision is Mr. Evans’?
b. How far from perfect vision is Mrs. Evans’?
c. Who has the worst vision? Why?
5. A large glacier has an elevation of 24,947 feet. Right beside the large glacier is a crevice that measures -12,834
feet below the surface. Which of the elevations is the farthest from sea level? How do you know?
6. A cell phone company has a goal of serving 8 billion customers. The last 4 years their customer service records
show that they have been above their goal and below their goal. The 4 years of records show customer service
of -3.25, 4.6, −
21
,
3
and 12.
a. If the company displayed this data on a number line what would zero represent in this situation?
b. What do the negative numbers represent?
c. What do the positive numbers represent?
d. Order the absolute value of each year of customer service from least to greatest.
7. It is against the law for drivers too fast or too slow on the road because both situations are hazardous and
unsafe. The speed limit posted on a certain road is 55 mph. A police officer who was patrolling that same road
decides to write how much the speed of passing cars were away from the posted speed.
25, -17, -2, 1, -9, 5
a. If the numbers were placed on a number line, what would zero represent in this situation?
b. Explain what each number means.
c. Write the numbers in order representing the speeds of the cars that are breaking the law the least to
breaking the law the most.