Which of the following functions best represents the graph?
f(x) = (x + 3)(x - 3)(x - 9)
f(x) = (x + 3)(x - 3)(x + 9)
f(x) = (x + 3)(x − 3)(x - 1)
f(x) = (x + 3)(x - 3)(x + 1)

Aregression was run to determine if there is a relationship between hours of tv watched per day (x) and number of situps a person can do (y). the results of the regression were: y=ax+b a=-0.662 b=30.418 r2=0.703921 r=-0.839

Which graph represents the function g(x) = |x + 4| + 2?

Solve the equation by completing the square. x^2+2x=17