Question

1. in the equation $x^2 - 4y = 2z - 1$, what is the constant?

a. $x^2$

b. $2z$

c. -1

d. $4y$

Explanation:

Step1: Define a constant

A constant is a term that has a fixed value and does not contain any variables. Variables are symbols (like \(x\), \(y\), \(z\)) that can represent different values.

Step2: Analyze each option

• Option a: \(x^{2}\) contains the variable \(x\), so it is not a constant.
• Option b: \(2z\) contains the variable \(z\), so it is not a constant.
• Option c: \(- 1\) has a fixed value and no variables, so it is a constant.
• Option d: \(4y\) contains the variable \(y\), so it is not a constant.

Answer:

c. -1