Pythagorean Theorem / Distance Formula CW Use the Pythagorean Theorem / Distance Formula to find the lengths of the missing sides. 1. 3. 2. у y 1 Al-2,3) B(1,2) Al-3,-1) 1 B(1, -2) 1 B13,0) A-1, -1)

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?