The table shows the outputs y for different inputs x: Input (x) 5 6 7 8 Output (y) 2 5 8 11 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) = 2x + 13. Which relation has a greater value when x = 7? (2 points) Part C: Using the relation in Part B, what is the value of x if f(x) = 75?

Question

Answer:

Part A: yes, because every input value x produces only one output value y.

Part B: in the first function, when x=7, why=8 is given
in the second function, when x=7, y=2x+13=27
so the second function has a greater value when x=7

Part C: when f(x)=2x+13=75, 2x=62, x=31

solved

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