Answer:
See explanation below
Step-by-step explanation:
a. f(x) is increasing at (-∞, 1] and [7, ∞) because f'(x) is positive at those intervals.
b. f(x) is concave up at [4, ∞) because the slope of f'(x) or f''(x) is positive.
The literal equation for x is
given that 
The subject of a formula is a way of representing a variable in terms of other variables.
Given the equation

Factor out the common variable x

Divide both sides by 4+5y

This shows that the literal equation for x is 
Learn more here: brainly.com/question/21140562
The ordered pairs below represent a relation between x and y.(-3,1), (-2,3), (-1,5), (0,7), (1,9), (2,11)Could this set of order
Liula [17]
Yes because its like x cant cheat on y but y can cheat on x so basically your answer is yes and if you need anything else let me know