What is the value of h when the function is converted to vertex form?

note: vertex form is f(x)=a(x−h)2+k .

f(x)=x2+10x+35

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h =

what is the minimum value for h(x)=x2−16x+60?

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y =

what are the x-intercepts of the quadratic function?

f(x)=x2−3x−10

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let f(x)=x2+17x+72 .

what are the zeros of the function?

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and

let f(x)=x2−8x+19 .

what is the minimum value of the function?

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