identify the percent of change as an increase or a decrease.

4/5 to 3/5

find the percent of change.

round to the nearest tenth of a percent if necessary.

When only separate discreet points are graphed it is called?

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?

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?