what-is-the-vertex-form-of-the-parabola-whose-standard-form-equation-is-y-5x-2-3

The vertex is ##=(3,4)##

Let’s rewrite the equation and complete the squares

##y=5x^2-30x+49= 5(x^2-6x)+49####=5(x^2-6x+9)+49-45####=5(x-3)^2+4##

graph{5x^2-30x+49 [-12.18, 13.14, -0.18, 12.47]}

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