this question just confuses me-
In which of the following expressions is the coefficient of term "x" 1?
A. 2x² + x-9
B. 2x ²- 3x + 1
C. 3x² - x - 5
**D. x² + 2x + 7
Whats the answer?
To find the coefficient of term "x" in an expression, you need to look for the numerical value in front of the "x" term.
Let's check the options:
A. 2x² + x - 9
The coefficient of the "x" term is 1.
B. 2x² - 3x + 1
The coefficient of the "x" term is -3, not 1.
C. 3x² - x - 5
The coefficient of the "x" term is -1, not 1.
D. x² + 2x + 7
The coefficient of the "x" term is 2, not 1.
Therefore, the expression in which the coefficient of the term "x" is 1 is option A: 2x² + x - 9.
To find the expression in which the coefficient of the term "x" is 1, we need to look for the expression where the constant coefficient in front of the term "x" is 1.
Let's examine each option:
A. 2x² + x - 9: The coefficient of the term "x" is 1 in this expression.
B. 2x² - 3x + 1: The coefficient of the term "x" is -3, not 1.
C. 3x² - x - 5: The coefficient of the term "x" is -1, not 1.
D. x² + 2x + 7: The coefficient of the term "x" is 2, not 1.
Therefore, the expression in which the coefficient of the term "x" is 1 is option A: 2x² + x - 9.
No. If the coefficient of x is 1, then one of the terms should be 1x
.
But usually when we have 1x, we just write "x"
So, A is the answer
in D, the coefficient of x² is 1
in C, the coefficient of x is -1