Y is inversely proportional to the square of x. A table of values for x and y is shown.
х
1
2
3
4
у
4
1
1
4
9
1
4
a) Express y in terms of x.

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 inequality is equivalent to -3x < -12? x < 4 , x < -4 , x > 4, x > -4

The graph of a function f(x)=(x+2)(x-4). which describes all of the values for which the graph is negative and increasing? all real values of x where x< -2 all real values of x where -2