The slope of a line that is perpendicular to a line whose slope is 3/8 is

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?

Which equation expression the relationship between the number of boxes b and the number of cans c and the proportion is 48

Which equation is y = -6x2 + 3x + 2 rewritten in vertex form?