Funçãodo 1°e 2°grau

Observe the graph of a second-degree polynomial function below. What is the maximum value that this function assumes?

• 2

• 3

• 4

• 5

• 6

Consider the graphical representation of the function f: (-4, 2) and (-5, 4) shown below. This function is increasing in the interval.

• (-5, 4)

• (-4, -1)

• (-4, 2)

• (-3, 1)

• (-1, -2)

What is the formation law related to the graph below?

• -4x²+4x+3

• 4x²+4x-3

• -4x-4x+3

• 4x²+3x-4

• 3x²-3x+4

If a quadratic function has a negative coefficient 'a', a negative 'b', and 'c' equal to zero, then the graph that best represents it is the one from the alternative:

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An airplane executed a risky maneuver coming very close to the ground. The maneuver of this airplane described a parabolic trajectory, as shown in the drawing. What is the minimum value reached by the airplane?

• -4

• 2

• -2

• 0

• -1

Given the function f(x)= x² - 4x + 4, which graph best represents it on the Cartesian plane?

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The following graph represents a first-degree function.

• f(x) = -2x - 6.

• f(x) = 2x + 4.

• f(x) = 4x - 2.

• f(x) = -x - 4.

• f(x) = -6x + 3.

The following graph represents a first-degree function. What is the correct algebraic representation?

• 2x+1

• 1.5x+2

• 0.6x+2

• 2x-3

• -3x+2

Analyzing the graph, which alternative correctly describes the algebraic representation and the number of people needed to achieve the expected profit?

• y=15x-600

• y=-600+1200

• y=-15x+600

• y=15x+600

• y=15x+1200

What is the algebraic representation of line r in the graph below?

• y=x+1

• y=x-1

• y=-x-1

• y=-x+1

• y=1