A graph titled Calories in Strawberries. The x-axis shows the number of strawberries, numbered 1 to 9, and the y-axis shows the number of calories, numbered 3 to 27. A straight line with a positive slope begins at point (0, 0) and ends at point (6.8, 27).

If the function has an inverse function, which statement must be true?





The graph shows the relationship between the total amount of money that Carly will have left, y, if she buys x packs of baseball cards.

Which graph represents the same relation as the set ?





The graph below shows the total cost for lunch, c, when Will and his friends buy a large salad to share and several slices of pizza, p.

If and , what is the degree of ?

If f(x) = x2 – 25 and g(x) = x – 5, what is the domain of ?

The graph of f(x) is shown below.If g(x) and f(x) are inverse functions, which graph represents g(x)?





What is the domain of the relation graphed below?





A graph titled Cost of Erasers. The x-axis shows the number of erasers, numbered 1 to 9, and the y-axis shows the total cost in dollars, numbered 0.5 to 4.5. Blue diamonds appear at points (1, 0.5), (2, 1), (3, 1.5), (4, 2), (5, 2.5), (6, 3), (7, 3.5), (8, 4), (9, 4.5).

The tables for f(x) and g(x) are shown below.xf(x)–5–11–21113529xg(x)–5–7–2–115513What is the value of (f – g)(5)?
The cost of producing x soccer balls in thousands of dollars is represented by h(x) = 5x + 6. The revenue is represented by k(x) = 9x – 2. Which expression represents the profit, (k – h)(x), of producing soccer balls?
Which statement verifies that f(x) and g(x) are inverses of each other?




If k(x) = 5x – 6, which expression is equivalent to (k + k)(4)?
For what value of is the function one-to-one?

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