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3 votes
Compare the functions below:

[ f(x) = -3 sin(x - pi) + 2 ]
[ h(x) = (x + 7)^2 - 1 ]
[ g(x) ]
Which function has the smallest minimum?
(a) ( f(x) )
(b) ( h(x) )
(c) ( g(x) )
(d) Cannot be determined without additional information

User Lopisan
by
8.2k points

1 Answer

3 votes

Final Answer:

The smallest minimum function is (b)
\( h(x) \).

So. the correct answer is B.

Step-by-step explanation:

The function
\( h(x) = (x + 7)^2 - 1 \) represents a quadratic function with a minimum value. In the standard form
\( ax^2 + bx + c \) this function is written as
\( h(x) = x^2 + 14x + 48 \). Quadratic functions of the form
\( ax^2 + bx + c \) have a minimum or maximum value depending on the sign of the coefficient
\( a \).

Since
\( a \) is positive in this case (1) the parabola opens upwards indicating that the function has a minimum value.On the other hand, the functions
\( f(x) = -3 \sin(x - \pi) + 2 \) and
\( g(x) \) do not have a minimum value.

The sine function
\( \sin(x) \) oscillates between -1 and 1 and the coefficient -3 in
\( f(x) \) on ly scales these oscillations. The function
\( g(x) \) is not defined and without additional information it cannot be determined if it has a minimum.

Therefore based on the given information
\( h(x) \) 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.

User Tamir Gefen
by
8.7k points