Quadratic Equation: Finding Algebraic Expression for Point (5,-4)

Find the corresponding algebraic representation of the drawing:

(5,-4)(5,-4)(5,-4)

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Step-by-step video solution

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00:00 Find appropriate algebraic representation for the function
00:05 The function is a parabola
00:13 The minimum point is 5 units to the right according to the drawing, thus we'll find P
01:01 The minimum point is 4 units down according to the drawing, thus we'll find K
01:27 And this is the solution to the question

Step-by-step written solution

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1

Understand the problem

Find the corresponding algebraic representation of the drawing:

(5,-4)(5,-4)(5,-4)

2

Step-by-step solution

To solve this problem, we'll use the vertex form of a parabola equation, y=(xh)2+k y = (x - h)^2 + k , where (h,k)(h, k) is the vertex of the parabola.

Step 1: We have the point (5,4)(5, -4) that indicates the vertex of the parabola.

Step 2: Substitute h=5h = 5 and k=4k = -4 into the vertex form equation.

By substitution, the equation becomes:

y=(x5)24 y = (x - 5)^2 - 4

Therefore, the algebraic representation of the parabola is y=(x5)24\mathbf{y = (x - 5)^2 - 4}.

3

Final Answer

y=(x5)24 y=(x-5)^2-4

Practice Quiz

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Which equation represents the function:

\( y=x^2 \)

moved 2 spaces to the right

and 5 spaces upwards.

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