For f(x) = -3x^2 - 4x - 3, find f(x+h)-f(x)/h

If possible please explain how you got the answer.

Which inequality has a dashed boundary line when graphed ?

Consider this equation. |y + 6| = 2 what can be concluded of the equation? check all that apply. there will be one solution. there will be two solutions. the solution to –(y + 6) = 2 will be also be a solution to the given absolute value equation. the solution(s) will be the number(s) on the number line 2 units away from –6. the value of y must be positive since the variable is inside absolute value signs.

Which number completes the inequality? 2/3 < _ < 7/9