Answer: 
Step-by-step explanation:
Given the polynomial 
, you can evaluate it for the given value of the variable "x" by substituting the value 
into the polynomial.
Therefore, when , you get the following result:
Answer:
2
Step-by-step explanation:
f(x) = 2x - 3 is a linear function
The rate of change of a linear function is the measure of the slope.
The equation is in slope- intercept form, that is
y = mx + c ( m is the slope and c the y- intercept )
y = 2x - 3 has slope m = 2
Thus rate of change = 2
