f(x)=−(x+2)2+16Which of the following is an equivalent form of the function f in which the y-intercept of the graph of f appears as a constant or coefficient?Choose 1 answer:(A) f(x)=−(x−6)(x+2)(B) f(x)=−(x−2)(x+6)(C) f(x)=−x2−4x+12(D) f(x)=−x2+4x+20
Q. f(x)=−(x+2)2+16Which of the following is an equivalent form of the function f in which the y-intercept of the graph of f appears as a constant or coefficient?Choose 1 answer:(A) f(x)=−(x−6)(x+2)(B) f(x)=−(x−2)(x+6)(C) f(x)=−x2−4x+12(D) f(x)=−x2+4x+20
Expand the given function: Expand the given function f(x)=−(x+2)2+16 to find the y-intercept.To expand, apply the square to the binomial (x+2)2 and then multiply by −1.(x+2)2=x2+4x+4Now, multiply by −1 to get:−(x2+4x+4)=−x2−4x−4Finally, add 16 to get the expanded form:f(x)=−x2−4x−4+16Simplify the constant terms:f(x)=−x2−4x+12
Identify the y-intercept: Identify the y-intercept in the expanded form.The y-intercept of a function is the value of the function when x=0.In the expanded form f(x)=−x2−4x+12, when x=0, f(0)=12.This means the y-intercept is 12.
Compare with given choices: Compare the expanded form with the given choices to find the equivalent form that shows the y-intercept as a constant or coefficient.The expanded form is f(x)=−x2−4x+12.Now, let's check the choices:(A) f(x)=−(x−6)(x+2) does not match the expanded form.(B) f(x)=−(x−2)(x+6) does not match the expanded form.(C) f(x)=−x2−4x+12 matches the expanded form and shows the y-intercept as 12.(D) f(x)=−x2+4x+20 does not match the expanded form.
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