Word problem

Question

1. What is the difference between the domain and the range of a function? Answer in a complete sentence.

2. Explain what "evaluating a function" means. Provide an example.

3. How to find the meaning of the slope in terms of the given real-world scenario? Provide a real-world example

Answer 1

1. Domain is simply all possible numbers that can be used to evaluate a function, usually all possible x values. Range is all possible output values, usually known as y values. (when y = f(x)).

 

2. Evaluating a function means to compute the y value a.k.a. f(x) by substituting a particular number, from the domain, for x.

 

3. For positive slopes, the greater the number, the steeper is the rise (from L to R) of the curve or graph of a function.

Positive-slope lines lean forward, negative-slope lines lean backward.