X2+6x+8 Which expression is equivalent to X+2+ 4x-
X+4
?
O 4x
O 4x + 4
O x2 +7X+10
O-X2-5x-6

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?