Absolute Value Vertex and Axis of Symmetry

The function
 ^{f(t) = -2|t - 15| + 50}
is graphed and represents weekly sales of shoes, f(t) in $1000s, where t is weeks. What is the domain for this graph?

• 0 ≤ t ≤ 40

• 0 ≤ t ≤ ∞

• 20 ≤ t ≤ 40

• -∞ ≤ t ≤ 50

Observe the graph. What is the MAXIMUM on the interval [5,8]?

• 1

• 2

• 3

• 4

Observe the graph. What is the MINIMUM value on the interval [0,3]?

• 1

• 2

• 3

• 4

Observe the graph. What is the MAXIMUM value on the interval [-5,0]?

• 1

• 2

• 3

• 4

What is the range of the absolute value function?

What is the range of this graph?

• (2, 3)

What is the y-intercept?

• (0, 2)

• (2, 0)

• none

• (2, 2)

What is the y-intercept?

• (0, 7)

• none

• (-4, 3)

• (0, 0)

What is/are the x-intercept(s) of the absolute value function?

• (0, 4)

• none

• (4, 0)

• [4, infinity)

What is the equation of the absolute value function?

• f(x)= 4|x+3|

• f(x)= 1/4 |x+3|

• f(x)= 1/4 |x - 3|

• f(x)= 4|x - 3|