Solve the problem.
-It is recommended that a woman who is pregnant should exercise such that her heart rate does not exceed 140 beats per minute. Use absolute value notation to write an expression that describes the
Difference between the heart rate achieved by each of the following pregnant women and the
Recommended maximum heart rate. Then evaluate that expression. (i) Abigail: 122 beats per minute
(ii) Mathilda: 144 beats per minute

A) (i) Abigail: $| 140 - 122 | = - 18$
(ii) Mathilda: $| 140 - 144 | = - 4$

B) (i) Abigail: $| 122 - 140 | = 18$
(ii) Mathilda: $| 144 - 140 | = 4$

C) (i) Abigail: $122 - 140 = - 18$
(i) Mathilda: $144 - 140 = 4$

D) (i) Abigail: $| 122 + 140 | = 262$
(ii) Mathilda: $| 144 + 140 | = 284$

Question

Solve the problem.
-It is recommended that a woman who is pregnant should exercise such that her heart rate does not exceed 140 beats per minute. Use absolute value notation to write an expression that describes the
Difference between the heart rate achieved by each of the following pregnant women and the
Recommended maximum heart rate. Then evaluate that expression. (i) Abigail: 122 beats per minute
(ii) Mathilda: 144 beats per minute

A) (i) Abigail: $| 140 - 122 | = - 18$
(ii) Mathilda: $| 140 - 144 | = - 4$

B) (i) Abigail: $| 122 - 140 | = 18$
(ii) Mathilda: $| 144 - 140 | = 4$

C) (i) Abigail: $122 - 140 = - 18$
(i) Mathilda: $144 - 140 = 4$

D) (i) Abigail: $| 122 + 140 | = 262$
(ii) Mathilda: $| 144 + 140 | = 284$

Quizplus · Accepted Answer

Absolute value notation is used to express the magnitude of the difference between two numbers, regardless of their order, and always yields a non-negative result. For Abigail, $| 122 - 140 | = 18$ and for Mathilda, $| 144 - 140 | = 4$, indicating the difference in heart rates from the recommended maximum.

Solve the Problem ∣140−122∣=−18| 140 - 122 | = - 18∣140−122∣=−18

Solve the Problem $| 140 - 122 | = - 18$