What are the steps to evaluate an expression?
Here are the steps for evaluating an expression:
- Replace each letter in the expression with the assigned value. First, replace each letter in the expression with the value that has been assigned to it.
- Perform the operations in the expression using the correct order of operations.
How do you factor expressions?
Each term of 10x + 5 has 5 as a factor, and 10x + 5 = 5(2x + 1). To factor an expression by removing common factors proceed as in example 1. 3x is the greatest common factor of all three terms. Next look for factors that are common to all terms, and search out the greatest of these.
What do we mean by evaluate a source?
Source evaluation is the process of critically evaluating information in relation to a given purpose in order to determine if it is appropriate for the intended use.
How do you evaluate a source history?
Think about these questions when evaluating primary sources:
- Ask who is responsible for the information. Who are they?
- Ask who the original audience was. Get a sense for why the information was created in the first place.
- Ask whether other sources match.
Can expressions be equal?
Equivalent expressions are expressions that work the same even though they look different. If two algebraic expressions are equivalent, then the two expressions have the same value when we plug in the same value for the variable.
How do you evaluate sources and why do we need to properly reference sources?
Think about these things to get started evaluating:
- Date of Publication.
- Scope / Depth / Breadth.
- Quality of Publication.
- Intended Audience.
- Level of Information.
How do you solve equivalent expressions?
Complete the equation by putting it back together. This means taking the two new numbers and keeping the function in the middle the same: 6xy + 4x. This is your equivalent expression. You can write the two expressions to show equality: 2x(3y + 2) = 6xy + 4x.
What is an example of an equivalent expression?
Two expressions are said to be equivalent if they have the same value irrespective of the value of the variable(s) in them. Example 1: Are the two expressions 2y+5y−5+8 and 7y+3 equivalent? Explain your answer.
Why is it important to evaluate sources in history?
Evaluating information sources is a important part of the research process. Not all information is reliable or true, nor will all information be suitable for your paper or project. Print and Internet sources vary widely in their authority, accuracy, objectivity, currency, and coverage.