Enh - First Semester Review (all)

Identify the value of x that would make the relation shown in the table NOT a function.

Mathematical Equivalence

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Identify the possible value for x that would make the relation shown in the table NOT a function. Explain.

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The table shown represents a relation between x and y. Which statement about the relation is true?

• Because each y-value is paired with exactly one x-value, the relation is a function.

• Because each x-value is paired with exactly one y-value, the relation is a function.

• Because there are some y-values assigned to more than one x-value, the relation is not a function.

• Because there are some x-values assigned to more than one y-value, the relation is not a function.

Which situation most accurately matches the graph?

• A student rides his skateboard to another friend's house. After 30 minutes, he leaves and walks to the store.

• A student walks up a steep hill, then walks on a flat road before walking up another hill.

• A student runs home from school, sits at home for 30 minutes, and then goes out to another friend’s house.

Which company has a higher initial cost?

• Company A

• Company B

Which friend saved the least amount of money per day?

• Mai

• Shakira

Which representation shows someone purchasing more expensive gas (higher rate of change)?

• The graph has a higher rate of change.

• The equation has a higher rate of change.

Which student runs at a faster rate? 

• Evelyn

• Adrian

Create an equation for the given graph.

• y = 5x + 100

• y = 100x + 5

• y = 5x - 100

• y = 100x - 5

A local fair charges an entry fee for each ride ticket purchased at the fair. The equation y = 3x + 15 can be used to determine the amount of money a person will spend at the fair. What do the numbers 3 and 15 represent in terms of the money spent at the local fair?

• The 3 represents the cost per ticket and the 15 represents the entry fee.

• The 3 represents the entry fee, and the 15 represents the cost per ticket.

• The 3 represents the entry fee and the 15 represents the total amount paid.

• The 3 represents the cost per ticket and the 15 represents the total amount paid.