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Select the correct answer. Consider the graph of the function \( f(x) = 10^x \). What is the y-intercept of...

Select the correct answer.
Consider the graph of the function \( f(x) = 10^x \).
What is the y-intercept of function \( g \) if \( g(x) = -4f(x) + 12 \)?
○ (0, -4)
○ (0, 8)
○ (0, 1)
○ (0, 12)

Answer

Solution:

The y-intercept of a function is found by evaluating the function at \( x = 0 \).

Given \( f(x) = 10^x \), we find \( f(0) = 10^0 = 1 \).

Substitute \( f(0) \) into \( g(x) = -4f(x) + 12 \):

\( g(0) = -4(1) + 12 = -4 + 12 = 8 \).

Therefore, the y-intercept of \( g(x) \) is \( (0, 8) \).

  1. (0, 8)

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