Find g(x), where g(x) is the reflection across the x-axis of f(x)=−6(x−7)2+2.Choices:(A) g(x)=6(x−7)2−2(B) g(x)=−6(x+7)2+2(C) g(x)=−6(x−7)2−2(D) g(x)=6(x+7)2−2
Q. Find g(x), where g(x) is the reflection across the x-axis of f(x)=−6(x−7)2+2.Choices:(A) g(x)=6(x−7)2−2(B) g(x)=−6(x+7)2+2(C) g(x)=−6(x−7)2−2(D) g(x)=6(x+7)2−2
Multiply y-values by −1: To reflect a function across the x-axis, we need to multiply the y-values (output of the function) by −1. This means we will change the sign of the entire function f(x).
Modify original function: The original function is f(x)=−6(x−7)2+2. To reflect it across the x-axis, we multiply by −1 to get g(x)=−1×[−6(x−7)2+2].
Distribute −1 across function: Distribute the −1 across the function to change the signs: g(x)=−1×[–6(x–7)2]+−1×[2].
Simplify the expression: Simplify the expression: g(x)=6(x–7)2−2.
Choose correct option: Now we choose the correct option that matches our result. The correct option is g(x)=6(x–7)2–2.