Final Answer:
The smallest minimum function is (b)
.
So. the correct answer is B.
Step-by-step explanation:
The function
represents a quadratic function with a minimum value. In the standard form
this function is written as
. Quadratic functions of the form
have a minimum or maximum value depending on the sign of the coefficient
.
Since
is positive in this case (1) the parabola opens upwards indicating that the function has a minimum value.On the other hand, the functions
and
do not have a minimum value.
The sine function
oscillates between -1 and 1 and the coefficient -3 in
on ly scales these oscillations. The function
is not defined and without additional information it cannot be determined if it has a minimum.
Therefore based on the given information
has the smallest minimum. Quadratic functions and their properties. Understanding the coefficients in a quadratic function helps determine whether it has a minimum or maximum value.
So. the correct answer is B.