Through: (2, 2), slope = 3
1) y = 4x + 4 B) y = 4x – 4
*) y = 3r – 4 D) y = - 4x – 4

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?