Q. f(x)=(x−2)2−9At what values of x does the graph of the function intersect the x-axis?Choose 1 answer:(A) x=−5,x=−1(B) x=5,x=1(C) x=−5,x=1(D) x=5,x=−1
Set equation to zero: The question prompt is: "At what values of x does the graph of the function f(x)=(x−2)2−9 intersect the x-axis?"To find the x-intercepts of the function, we need to set f(x) to zero and solve for x.So, we set the equation (x−2)2−9=0.
Solve the equation: Now we solve the equation (x−2)2−9=0.We can rewrite this as (x−2)2=9.Taking the square root of both sides, we get x−2=±3.
Positive root: We solve for x by adding 2 to both sides of the equations.For the positive root: x−2=3 leads to x=3+2, which gives us x=5.For the negative root: x−2=−3 leads to x=−3+2, which gives us x=−1.
Negative root: We have found two values of x where the function intersects the x-axis: x=5 and x=−1. These are the x-intercepts of the function.
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