The graph of function f is shown, where y = f(x).Which of the following describes function f?
Correct answer: A. Increasing linear
- A. Increasing linear
- B. Decreasing linear
- C. Increasing exponential
- D. Decreasing exponential
Explanation
Choice A is correct. The graph of function f shows that as x increases, f(x) also increases, which means f(x) is an increasing function. The graph of f is a line, which indicates a constant rate of change. A function that has a constant rate of change is a linear function. Therefore, function f can be described as increasing linearly.
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Quantitative reasoning applies arithmetic and basic algebra to numerical relationships, including percentages, ratios, averages, fractions, proportions, profit and loss, rates, time, work and measurement. Questions focus on translating words into equations, choosing an efficient method and checking whether the result is numerically reasonable.
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