Increasing Decreasing Constant Functions

What is the direction of the following graph?

• Increasing

• Decreasing

• Increasing and decreasing

Answer explanation

READING THE GRAPH FROM LEFT TO RIGHT, the function is INCREASING (think of the hiker CLIMBING a mountain).

What is the direction of the following graph?

• Increasing

• Decreasing

• Increasing and decreasing

Answer explanation

READING THE GRAPH FROM LEFT TO RIGHT, the function is DECREASING (think of the hiker SLIDING DOWN a mountain).

What is the direction of the following graph?

• Increasing

• Decreasing

• Increasing and decreasing

Answer explanation

READING THE GRAPH FROM LEFT TO RIGHT, the function is DECREASING (think of the hiker SLIDING DOWN a mountain).

What is the direction of the following graph?

• Increasing

• Decreasing

• Constant

• Both Increasing and decreasing

Answer explanation

READING THE GRAPH FROM LEFT TO RIGHT, the function is DECREASING AND INCREASING in different intervals (areas). It is never constant / resting.

What is the direction of the following graph?

• Increasing

• Decreasing

• Constant

• Both Increasing and decreasing

Answer explanation

READING THE GRAPH FROM LEFT TO RIGHT, the function is DECREASING AND INCREASING in different intervals (areas). It is never constant / resting.

What is the direction of the following graph?

• Increasing

• Decreasing

• Increasing and decreasing

Answer explanation

READING THE GRAPH FROM LEFT TO RIGHT, the function is DECREASING (think of the hiker SLIDING DOWN a mountain).

What is the direction of the following graph?

• Increasing

• Decreasing

• Constant

Answer explanation

READING THE GRAPH FROM LEFT TO RIGHT, the function is CONSTANT (think of the hiker simply walking without going up or down - straight line).

When is this function increasing?

• -2.5 < x < 2.5

• 0 < x < 5

• 0 < x < 55

• -5 < x < 0

Over what interval is this function constant?

• -5 < x < ∞

• -3 < x < 4

• 4 < x < ∞

• -5

On what interval is the function decreasing?

• ( −∞, −2.55) U (0, 2.55)

• (∞, −6.25) U (36, −6.25)

• (−∞, ∞)

• (−∞, 0)