F(x) = -8x + 4
Help me find the intercepts of this function please.

Your room is still fairly dark when you wake up early one morning. you look over at your shirt hanging on a hook. you know it's your red shirt because you hung it up there before you went to bed, but in the dark you can't see its color. it looks dark gray to you. why is that?

Which statement describes absolute and apparent brightness? absolute brightness and apparent brightness are identical ways to describe the brightness of a star. absolute brightness and apparent brightness change with the distance from the star to the observer. absolute brightness depends on the distance from the star to the observer, whereas apparent brightness is always the same. absolute brightness is the actual amount of light produced by the star, whereas apparent brightness changes with distance from the observer.

How do astronomers measure the amount of dark matter in the universe