Math

Linear Equations & Inequalities

Natasha D. Collins

MTH/208

07 April 2011

John Rudin

Linear Equations & Inequalities

Question 1: Using the readings in Ch. 2 of the text, identify and explain at least one real-world application of algebraic concepts for one of the following areas: business, health and wellness, science, geometry, sports, and environmental sustainability. Did you have any difficulty with this activity? Explain why or why not.

A real world concept of algebraic concepts would be in health and wellness. If in the medical field algebra is used daily. Pharmacy Technicians have to use it to make sure a patient is give then correct dose of medication. The same applies to a nurse. This was not hard to explain because I am a licensed Pharmacy Tech in the State of Texas. Had to use basic concepts daily when working in the Pharmacy

Question 2: If the cost of a cell phone has decreased 400% during the past 10 years, does that correspond to a cost decrease of four times? Explain your answer as though you were talking to someone who has never taken algebra.

Mr. Rudin I spent a lot of time trying to figure this one out. This is one that I will have to ask about in class. I have sat here racking my brain, going through notes, and the textbook, and I cannot answer this question at this time

Question 3: Can a linear equation and a linear equality be solved the same way? Explain why. What makes them different?

You solve them the same way but you graph them differently once you solve the thing if it’s an inequality pick a point on the coordinate plane and plug it in. If it works out shade that part of your graph if not shade the opposite side of the line or parabola.

Question 4: What are the four steps for solving an equation? Should any other factors be?

accounted for when solving an equation? Should any factors be accounted for when explaining how to solve an equation?

PEMDAS...