Use the quadratic function f(x)=41x2+4x+11 to answer the following questions. Use the vertex formula to determine the vertex. The vertex is ◻. (Type an ordered pair. Simplify your answer.)
Q. Use the quadratic function f(x)=41x2+4x+11 to answer the following questions. Use the vertex formula to determine the vertex. The vertex is ◻. (Type an ordered pair. Simplify your answer.)
Identify Formula: Identify the formula for the vertex of a quadratic function in the form f(x)=ax2+bx+c. The vertex x-coordinate is given by x=−2ab.
Substitute Coefficients: Substitute the coefficients a=41 and b=4 into the vertex formula. Calculate x=−2⋅(41)4=−0.54=−8.
Calculate Y-coordinate: Substitute x=−8 into the function to find the y-coordinate of the vertex. Calculate f(−8)=(41)(−8)2+4(−8)+11=16−32+11=−5.
Combine Coordinates: Combine the coordinates to form the vertex. The vertex is (−8,−5).
More problems from One-step inequalities: word problems