Which polynomial does the model represent?
(1 point)
· –x³ + 2x² – 3x + 2
· x² + x – 2
· –x² – x + 2
· –x² + x – 2
for questions 2 and 3, simplify the polynomial.
2.
4x2 + 4 – 5x + x – 2x2 + 8
(1 point)
· –2x2 + 4x + 12
· –2x2 – 4x + 12
· 2x2 + 4x + 12
· 2x2 – 4x + 12

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?