Solve y=-(x-3)²-1: Vertical Shift of 5 Units

Question

Which equation represents the the function

y=(x3)21 y=-(x-3)^2-1

moved 5 spaces up?

Video Solution

Step-by-Step Solution

To solve this problem, we will follow these steps:

  • Step 1: Identify the original function.
  • Step 2: Apply the vertical shift of 5 units upward.
  • Step 3: Write the resulting equation.

Let's go through each step:

Step 1: The given function is y=(x3)21 y = -(x-3)^2 - 1 . This can be identified as a downward-facing parabola with its vertex at the point (3,1) (3, -1) .

Step 2: To move the entire function 5 spaces up, we add 5 to the constant term 1-1 in the equation. The effect of this transformation is that the new vertex becomes (3,1+5)=(3,4) (3, -1 + 5) = (3, 4) .

Step 3: Updating the function, we have:

y=(x3)21+5 y = -(x-3)^2 - 1 + 5

Simplify by combining the constants:

y=(x3)2+4 y = -(x-3)^2 + 4

This transformation results in the function moving 5 units up along the vertical axis to a new equation. The final equation is y=(x3)2+4 y = -(x-3)^2 + 4 .

Therefore, the solution to the problem is y=(x3)2+4 y=-(x-3)^2+4 , which is choice 4 from the given options.

Answer

y=(x3)2+4 y=-(x-3)^2+4