Interpreting Function Relationships

Perform the indicated operation.

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Given the graph of f(x) and g(x) what would the value of (f*g)(1) be?

• -1.5

• -1

• -2.5

• 0

h(x) = 3x + 3 and g(x) = -4x + 1

Find (h + g)(10)

• -6

• 6

• 82

• -72

Deniz studied the park near her home, where she saw and modeled the following relationships.

The expression B(H(k)) represents which of the following?

Choose 1 answer:

• The height of a tree as a function of its altitude

• The average temperature as a function of the altitude at that location

• The number of birds nesting in a tree as a function of the average temperature at that location

• A.
• B.
• C.
• D.

• After selling 50 cones, the parlor makes a profit of 85 dollars.

• After selling 85 cones, the parlor makes 50 dollars of profit.

• 10 hours after midnight, there are N people on the beach.

• There are 10 people on the beach N hours after midnight.

• There are the same amount of people on the beach at 10 past midnight and at N past midnight.

The function below can be used to model the height (h, in feet) of a ball t-seconds after it is launched into the air. What is the height of the ball once 5 seconds have passed?

h(t) = -16t² + 75t + 80

• 55 feet

• 124 feet

• 375 feet

• 535 feet

The function below can be used to model the height (h, in feet) of a ball t-seconds after it is launched into the air. What is the height of the ball once 5 seconds have passed? h(t) = -16t² + 75t + 80

• 55 feet

• 124 feet

• 375 feet

• 535 feet

What do you call the point where a function crosses the x-axis?

• y-intercept

• root

• minimum

• maximum