This is indeed a GRE Math question that even high school students can solve!

**Q2) **Which of the following is an equation of the line tangent to the graph at ?

(A)

(B)

(C)

(D)

(E)

**Solution:**

Firstly, at , .

Substituting these values into , we get

, hence .

Thus, the equation is .

Answer: (E)

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*Related*

What percentage of high school students study Calculus nowadays?

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In Singapore it would be around 50%. Those students who take Additional Mathematics at age 16 would be exposed to calculus.

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