Find the interval of the equation which function f is concave up or down locate inflection point f(x)=(x+2)^3

We need to compute and study the sign of the second derivative:

So, we have

So, this function is concave down before -2 (the second derivative is negative), it changes at x=-2 (inflection point), and it's concave up after -2 ( the second derivative is positive)

a ruler? idk

step-by-step explanation:

options a,b,c are the right answer.

step-by-step explanation:

a linear parent function is always represented as y = x

if we write this function in the form of y=mx+c

⇒

or  

now if we plot a graph we will find these characteristics:

1) y intercept of the graph is zero so its a straight line passing through origin.

2) as we can see in both the forms of function written, values of x and y may be either positive or negative for the positive slope means points on the graph are either in first quadrant or in third one.

3) it's slope is one.