Question

PLEASE HELP MEEEEDescribe the expression 2x + 5 in words.Use the math you know to solve the problem.a. What does the letter x stand for?5. Which operation is represented by 2x?What do you call the result of this operation?What operation does the + sign show?What do you call the result of this operation?Explain what the whole expression represents.

Answer 1

We have the expression 2x + 5. This expression represents, graphically, a line in a graph.

Then, we have:

a. The letter x stands for a variable. The variable x that changes as we can plug new values into the expression.

b. The operation that is represented by 2x is a multiplication, that is, 2x is the product of the multiplication of 2 times x. In this expression, we need to substitute a value into x and then multiply this value by 2. For example, if x = 1, then we have 2 * 1 = 2.

c. We can call the result of this operation a product (by the reasons already explained).

d. The operation that the sign + shows is an addition (we sum the numbers using this sign).

e. The result of this operation is the sum of two numbers (of the addition).

f. The whole expression (2x + 5) is a Line, and we can graph this: