The graph of g(x)=−21(x+3)2−4 is translated 4 units right. What is the value of h when the equation of the transformed graph is written in vertex form?(A) −7(B) 1(C) −3(D) 4(E) −1(F) 7
Q. The graph of g(x)=−21(x+3)2−4 is translated 4 units right. What is the value of h when the equation of the transformed graph is written in vertex form?(A) −7(B) 1(C) −3(D) 4(E) −1(F) 7
Understand Translation Effect: Understand the effect of translating a graph to the right on the equation.Translating a graph horizontally to the right by k units will result in a change in the x-component of the vertex form of the equation. The general form of the translation is:If g(x)=a(x−h)2+k, then the translated function g′(x)=a(x−(h+k))2+k.In this case, we are translating the graph 4 units to the right, so we will subtract 4 from the x-component of the vertex form.
Apply Translation to Function: Apply the translation to the given function.The given function is g(x)=−21(x+3)2−4. To translate this function 4 units to the right, we replace x with (x−4) in the equation.The new function will be h(x)=−21((x−4)+3)2−4.
Simplify Translated Equation: Simplify the equation of the translated function.Now we simplify the equation inside the parentheses:h(x)=−21(x−4+3)2−4h(x)=−21(x−1)2−4This is the vertex form of the translated function, where the vertex is at (h,k).
Identify Vertex Value: Identify the value of h in the vertex form.From the vertex form h(x)=−(21)(x−1)2−4, we can see that the vertex is at (h,k)=(1,−4).Therefore, the value of h is 1.