# Mat126 W3 Survey Of Mathematical Methods D1

**Question description**

This Discussion will concentrate on functions and graphs. Understanding
the definitions of words is the essence of mathematics. When we
understand the meaning of words, finding a solution is much easier
because we know what task the problem is asking us to complete.

** Part 1**

- In your own words, define the word “function.”
- Give your own example of a function using a set of at least 4 ordered pairs. The
**domain**will be any four integers between 0 and +10. The**range**will be any four integers between -12 and 5.**Your example should not be the same as those of other students or the textbook**. There are thousands of possible examples. - Explain why your example models a function. This is extremely important for your learning.
- Give your own example of at least four ordered pairs that
model a function. The**does not****domain**will be any four integers between 0 and +10. The**range**will be any four integers between -12 and +5.**Your example should not be the same as those of other students or the textbook**. There are thousands of possible examples. - Explain why your example
model a function.**does not**

**Part 2**

- Select any two integers between -12 and +12 which will become solutions to a system of two equations.
- Write
that have your two integers as solutions. Show how you built the equations using your integers.**two equations****Your solution and equations should not be the same as those of other students or the textbook**. There are infinite possibilities. - Solve your system of equations by the
**addition/subtraction method**. Make sure you show the necessary 5 steps. Use the example on page 426 of*Mathematics in Our World*as a guide. - Respond to at least two of your classmates’ postings. Do you agree or disagree that their examples model functions? Follow their 5 steps. Do their calculations follow the correct rules of algebra?

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