Calculate the Ascending Area: Finding Area Under y=(x+4)²-5

Question

Find the ascending area of the function

y=(x+4)25 y=(x+4)^2-5

Video Solution

Step-by-Step Solution

To solve this problem, we'll follow these steps:

  • Step 1: Identify the vertex of the function.
  • Step 2: Determine the direction in which the parabola opens.
  • Step 3: Use the vertex to determine where the function is increasing.

Now, let's work through each step:
Step 1: The function y=(x+4)25 y = (x+4)^2 - 5 is in vertex form, with the vertex at x=4 x = -4 .
Step 2: The expression (x+4)2(x+4)^2 has a positive coefficient, indicating the parabola opens upwards.
Step 3: For an upwards opening parabola, the function increases for values of xx greater than the vertex. Therefore, the function is increasing for x>4 x > -4 .

Therefore, the solution to the problem is 4<x -4 < x .

Answer

-4 < x