Identify the parent function. compare the given function parent function. describe the domain and range of f. f(x) = -1/3(3)^x

What is the length of bc ? enter your answer in the box.bc =

Consider the diagram. which line segment has the same measure as st? rx tx sr xs

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?