quiz 1

Question 1

what are the 2 requirements for 2 functions f(x) and g(X) to be equal

Answer 1

a. domain f = domain of g

b. f(x) = g(x) for all x in their domain

Question 2

when do you have to create a number line and test points?

Answer 2

when asked to find domain and there is an inequality

Question 3

what points do you test when there is a rational function + inequality? what ab just rational function?

Answer 3

just rational function: test denominator undefined values only on number line

both: test numerator and denominator values on number line

Question 4

finding domain of even root radical

Answer 4

need to test values using number line

Question 5

when asked to name where f is increasing or decreasing, how do you write it and what coordinates do you use?

Answer 5

write using open parenthesis and only use x coordinates

ex. increasing from (2,3)

Question 6

how do you check if points are colinear?

Answer 6

calculate each of their slopes and if their slopes are the same, they are colinear