I really don’t understand this plz help

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)

Multiply and simplify. (x - 4) (x^2 – 5x – 6) i will mark brainliest if your answer is right. show how you got the answer. if your answer is correct but does not show how you got the answer you will not be marked brainliest.

Which is an x-intercept of the graphed function? (0, 4) (–1, 0) (4, 0) (0, –1)