Linear Functions Graph Real World Non Proportional

The table shown is:

• Proportional, because it is going up by 2 each time.

• Linear, because it is going up by two each time.

• Not a function, because 1 appears in the table twice.

• A function but non linear, because it doesn't start at zero.

The table shown is:
(hint: find the rate of change)

• proportional function.

• linear function.

• non linear function.

• Not a function.

The table shown is:

• Linear, because it is going up by 2 each time.

• Proportional, because 1 goes evenly into 4 and 2 goes evenly into 6.

• A function, because none of the x values are repeated.

• Not a function because it doesn't start at zero.

Mary buys concert tickets for $45 each plus a service fee of $15 for the order. This situation is:

• Proportional, because you can figure out the total cost.

• Linear, because all of the tickets are the same price, but non proportional because you add the service fee

• Not a function, because you have to pay a service fee.

• A function but non linear because each ticket costs more than the fee.

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Graph

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Which is the graph of y=-x+2?

• A

• B

• C

• D

Graph

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When is the graph increasing?

• 4am - 4pm

• 4am - 12pm

• 12pm - 4pm

• 4pm - 8pm

When is the graph decreasing?

• 4pm - 8pm

• 4pm - 8am

• 12pm - 4pm

• 8am - 12pm