Keystone Module Algebra

Do the ordered pairs below represent a relation, a function, both a relation and a function, or neither a relation nor a function?

(-3,5) , (3,-7) , (7,-15) , (9,-19)

• function only

• neither a relation nor a function

• both a relation and a function

• relation only

Which of the following tables represents a function?

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At LMHS, t-shirts sell for $17.56 and cost $12.01 to produce. Which equation represents p, the profit, in terms of x, the number of t-shirts sold?

• p = $17.56 + $12.01x

• p = x($17.56 - $12.01)

• p = $17.56x - $12.01

• p = x($17.56 + $12.01)

Which of the following functions matches the graph?

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Which of the following tables corresponds to the graph below?

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Alex is flying 2,075 miles. The table below shows the number of miles left to go after each hour of travel time.

If Alex continues at the current rate, how many miles will he have remaining after traveling for 7 hours?

• 911 miles

• 707 miles

• 523 miles

• 717 miles

Which of the following functions matches the graph?

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Find the x- and y-intercepts of .

-x + 2y = 8

• x-intercept: -11, y-intercept: 4

• x-intercept: -11, y-intercept: 3

• x-intercept: -8, y-intercept: 3

• x-intercept: -8, y-intercept: 4

Write an equation in slope-intercept form for the line that passes through (3, 7) and (7, 4).

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Jim drove for several hours, recording the distance he had traveled in miles. Graph the data and show the rates of change.

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