Put a check mark next to any equation below that represents an exponential function.

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?

This is about circle theorems. someone asap : (

What rule describes a dilation with a scale factor of 4 and the center of dilation at the origin?