Digital SAT Math Test 1 Question 10

If the given function $g$ is graphed in the $xy$-plane, where $y=g(x)$, what is the $y$-intercept of the graph?
$$g(x)=3(\frac{3}{2})^x$$
Answer:
C

Explanation

The correct answer is Choice C.

Substitute $x=0$ in the given function to find the $y$-intercept.

Therefore, the $y$-intercept of the given function is $(0,3)$.

Choice A is incorrect and may have resulted from thinking that a number with an exponent 0 is equal to 0.

Choices B and D are incorrect and may have resulted from misinterpreting $y$-intercept.

✨ Expert's Tip ✨

An alternate method is to plot the graph of the function and find the $y$-intercept.

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