Question

Pls need help

What is a relation and what makes it different from a function?
How can you determine if a relation is a function?
How can you determine the domain and range of a function?
How can you use function notation to evaluate a function with a given equation?
How do you interpret statements that use function notation in terms of a context?
What is slope and how is it determined from a graph?
How do you determine the intercepts from an equation or graph?
How can linear equations and functions be written and graphed?
How do you use math tools to interpret, model, and solve real-world challenges?
What are the key features for a linear function, and how can you use those features to sketch graphs?
How do you change a linear function based on changes in the real world?
How do you write an equation to show the relationship between two variables?
When is it helpful to convert from point-slope to slope-intercept form?
How do you write equations for horizontal and vertical lines?
How do you graph horizontal and vertical lines?

Answer 1

1. A relation is a set from x to a set y is called a function if each element of c is related to exactly one element in y. That is,given an element c in c, there is only one element in y that x is related to.
2. You can set up the relation as a table of ordered pairs. Then, text to see if each element in the domain is matched with exactly one element in the range . if so you have a function
3. The domain is the set of all possible x-values which will make the function "work" and will output real y- values .When finding the domain , remember :the denominator (bottom) of a fraction cannot be zero .
4.