The table shows the input, x, and output, y, relationship for a function. Which function rule describes the relationship between x and y?

f(x)=13x−1

f(x)=−13x−1

f(x)=3x+1

f(x)=3x−1

The table represents a linear function. what is the slope of the function? –6 –4 4 6

Part a: sam rented a boat at $225 for 2 days. if he rents the same boat for 5 days, he has to pay a total rent of $480. write an equation in the standard form to represent the total rent (y) that sam has to pay for renting the boat for x days. (4 points)

Lin is writing an equation to model the proportional relationship between y, the total cost in dollars of downloading videos from a website, and x, the number of videos downloaded. she knows that the total cost to download 3 videos was $12. her work to find the equation is shown below. joylin’s work step 1 k= 3/12= 0.25 step 2 y= 0.25x where did joylin make her first error?