The additive identity of a real number is zero (0).
This means that when you add zero to any real number, the result is the original number itself.
For example, 5 + 0 = 5, and -3 + 0 = -3.
The array {1 2 8 3} has 1 row and 4 columns.
So, its order is 1 × 4.
y = mx + c
This is called the slope-intercept form, where:
m = slope of the line
c = y-intercept (value of y when x = 0)
It shows how y changes with x in a straight line.
25 million = 25,000,000 → There are 6 zeros.
4 × 5 + 3 = 23.
First, multiply 4 by 5 to get 20, then add 3 to get 23.
The coefficient of -2x is -2
