5
Answer: DSet 9: Linear Equations (Advanced)
Explanation
The table below represents a linear function.
| x | f(x) |
|---|---|
| a | 5 |
| a+2 | 11 |
What is the slope of the function?
What is the slope?
A.
6
B.
It depends on a
C.
2
D.✓ Correct
3
Detailed Explanation
Choice D is correct. Slope = change in y / change in x = (11 - 5) / ((a+2) - a) = 6 / 2 = 3.
Key Steps:
•
The correct answer is 3
Why others are wrong:
A: Choice A is incorrect and may result from a calculation error.
B: Choice B is incorrect and may result from a calculation error.
C: Choice C is incorrect and may result from a calculation error.
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