Not really sure what you mean by compare. The only thing I can think of is the y intercept is generally a good point to start from to count the rise/run
Expression consists of numbers, variables, and mathematical operations. The expression f(w)=5(w+4) is equal to f(9)=5(9)+20.
<h3>What is an Expression?</h3>
In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.
The expression is given to you is,

Now, if we solve the expression it can be written as,

substituting the value of w, we will get,

Hence, the expression f(w)=5(w+4) is equal to f(9)=5(9)+20.
Learn more about Expression:
brainly.com/question/13947055
The length of a'b' is the same as ab because it is the same image so it is 3 units
Answer:81
Step-by-step explanation: