Question

The table shows the outputs y for different inputs x:


Input
(x) 3 7 11 15
Output
(y) 4 6 8 10


Part A: Do the data in this table represent a function? Justify your answer. (3 points)
Part B: Compare the data in the table with the relation f(x) = 5x – 21. Which relation has a greater value when x = 11? (2 points)
Part C: Using the relation in Part B, what is the value of x if f(x) = 99? (5 points)


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Answer 1

Find the ordered pairs for the x- and y-intercepts of the equation 2x − 6y = 24 and select the appropriate option below.

The x-intercept is (2, 0); the y-intercept is (0, –6).
The x-intercept is (0, 2); the y-intercept is (–6, 0).
The x-intercept is (12, 0); the y-intercept is (0, –4).
The x-intercept is (0, 12); the y-intercept is (–4, 0).