Math: Elimination and substitution methods
Not what you're looking for?
Explain what the domain and range are of a function. Next, select an exercise between 13 and 36, inclusively, on pages 500 -501 of section 7.2. Find the domain of your selected function while showing your work, and explain the process.
f(x)=2x+1
Show how to solve it using the substitution method, and explain this process.
Additionally, how do you know what the solution is when graphing a system of equations?
9x-2y= - 6
7x+8=y
3. Show how to solve it using the elimination method, and explain this process.
Y=5 - 4X
2X-3Y=13
Purchase this Solution
Solution Summary
How to solve simultaneous equations by using elimination and substitution are determined.
Solution Preview
Detailed solutions are attached.
Week 5 DQ #2
Explain what the domain and range are of a function. Next, select an exercise between 13 and 36, inclusively, on pages 500 - 501 of section 7.2. Find the domain of your selected function while showing your work, and explain the process.
15.) f(x)=2x+1
Solution:
In a nutshell, domain refers to all possible values of x that the function can take, while range refers to all possible values of y that the function can take.
The easiest way to find the domain and range is to draw a function and to look at all possible values in the x-axis and all possible values in the y-axis. Below is how the function you chose look like:
From the graph, you can see that x can take any value and y can also take any value. Therefore the range and domain are as follows:
Domain: -infinity ≤ x ≤ + ...
Education
- MBA, Aspen University
- Bachelor of Science , Berea College
Recent Feedback
- "Thank u"
- "Thank You!"
- "Thanks!"
- "Thank you so much"
- "Great job...thanks."
Purchase this Solution
Free BrainMass Quizzes
Exponential Expressions
In this quiz, you will have a chance to practice basic terminology of exponential expressions and how to evaluate them.
Graphs and Functions
This quiz helps you easily identify a function and test your understanding of ranges, domains , function inverses and transformations.
Geometry - Real Life Application Problems
Understanding of how geometry applies to in real-world contexts
Solving quadratic inequalities
This quiz test you on how well you are familiar with solving quadratic inequalities.
Multiplying Complex Numbers
This is a short quiz to check your understanding of multiplication of complex numbers in rectangular form.