Suppose x and y vary together such that y=4x and there are no restrictions on x. y is a function of x, and we will call this function f. Write a function formula for f.

What is the (general) domain of f? Enter your answer as an inequality.

What is the (general) range of f? Enter your answer as an inequality.

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Guys i need ! graded assignment grade 8 checkpoint 2, part 2 answer the questions below. when you are finished, submit this assignment to your teacher by the due date for full credit. total score: of 9 points (score for question 1: of 4 points) 1. the cost of renting a car for a day is $0.50 per mile plus a $15 flat fee. (a) write an equation to represent this relationship. let x be the number of miles driven and y be the total cost for the day. (b) what does the graph of this equation form on a coordinate plane? explain. (c) what is the slope and the y-intercept of the graph of the relationship? explain.

8. kelly wants to buy a magazine that is $25. later the magazine was marked up an additional 20%. what is the new price?