Which statements about the graph of the function f(x) = -x2 - 4x + 2 are true? Select three options. The domain is {x\x 5-2}
The range is yly 56}
The function is increasing over the interval (-2)
The function is decreasing over the interval (-4).
The function has a positive y-intercept.

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?