2x + 4 = 16 Please Identify the following. What number is the coefficient? What is the variable? What is the constant?

Explanation: The coefficient is a number in front of your variable.

So here, the coefficient is 2 since it's before the variable x.

A variable is a letter that represents any number.

So here, the variable or the letter is x.

The constant is the number on its own.

So here, we have two constants, they are 4 and 16.

correct answer:

b.(19,-2)

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column