If the graph of the parent function f(x) = x is shifted 7 units up 5 left, what is the
function?
f(x) = (x+5)+7
f(x) = x+12
f(x) = (x+7)-5
f(x) = 7x - 3

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?