If a line on a graph goes up from left to right, the slope of the line is. A) Positive

B) Negative

C) Zero

D) Undefined​

What is the inverse of the function f(x) = 2x + 1?

Sam claims that cos x =sin y if x and y are congruent angels. is sam correct ?

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?