The linear function f (x ) has a y-intercept of -2, and the function f(x) + k has a y-intercept of 6. What is
the value of k?

Will mark the brainliest. paula makes stained-glass windows and sells them to boutique stores. if her costs total $12,000 per year plus $4 per window for the frame. how many windows must she produce to earn a profit of at least $48,000 in one year if she sells the windows for $28 each?