The length of a rectangle is 4 units greater than its width, and the area of the rectangle can be expressed by the eqaution y = x2 + 4x. what is a reasonable domain for this function?

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?

Write a polynomial function f of least degree that has rational coefficients, a leading coefficient of 1, and the given zeros. 3, 4+2i, 1+(sqrt)7 the answer is supposed to be: f(x)=x(^5)-13x(^4)+60x(^3)-82x(^2)-144x+360 what am i doing wrong?

What is the effect on the graph of the function f(x)=x when f(x) is replaced with -f(x)+4