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SAT数学:图像例题 6

2019-09-12 SAT-数学 阅读

SAT Question
Rank: Easy
Topic: Algebra, Interpreting Quadratic Graphs

Below is a question from a recent SAT exam. It is a non-calculator question that would typically take a student 1-2 minutes to complete.

The graph of is shown. If the graph crosses the y-axis at the point (0, k), what is the value of k?

To begin, we are looking for the point in this graph where the curve touches the y-axis. This is the point where x=0.
To answer this question, we must substitute the value of 0 into our equation wherever we see x.

Therefore, our answer is D 12.


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