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Solving from Vertex Form

 

In this section, we will be learning how to solve (x-intercepts) from vertex form. Please look below to see a sample problem for the following concept:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STEPS TAKEN TO SOLVE FROM VERTEX FORM (in general):

 

  1. Set the equation equal to the following value: "0".

  2. Bring the k-value (2) to the left-hand side. 

  3. Square-root your k-value of 2 (with plus-minus sign) to get rid of the squared symbol located on the right-hand side.

  4. Isolate for the variable by moving the number of 4 to the left-hand side. 

  5. Solve the equation with both the plus/minus sign.

  6. Suggested: Write your final answers in the form of points (coordinates).

 

 

STEPS TAKEN TO SOLVE FROM VERTEX FORM (with respect to the example given above):

 

  1. Set the equation equal to the following value: "0".

  2. Bring the k-value to the left-hand side. 

  3. Square-root your k-value (with plus-minus sign) to get rid of the sqaured symbol located on the right-hand side.

  4. Isolate for the variable by moving the number (with x-variable) to the left-hand side and make sure to place it infront of the square-root value.

  5. Solve the equation with both the plus/minus sign.

 

 

 

 

 

 

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