Consider this rational equation. 1/x + 1/x-2 = 1/4 Use the least common denominator to simplify the rational equation into a standard form quadratic equation
Replace the values of b and c create the equation x^2 - bx +c =0

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 is the focus of a parabola with equation y2=4x

Which expressions equal 9 when x=4 and y=1/3 a. x2+6y b. 2x + 3y c. y2-21x d. 5 (x/2) -3y e. 3x-9y