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題目

解題步驟

1. Understand the question

   o b. {y|y = } (use a comma to separate answers as needed.)
   o c. {y|y ≠ } (use a comma to separate answers as needed.)
   o d. {y|y < }
   o e. all real numbers

   the y-intercept of the function $f(x) = 5 \\cdot 8^{x}$ is . (type an integer or a decimal.)

2. Explanation

   Step1: Recall y-intercept definition

   The y-intercept occurs at $x=0$.

   Step2: Substitute $x=0$ into function

   $$f(0) = 5 \cdot 8^{0}$$

   Step3: Evaluate exponential term

   Since $8^0 = 1$,
   $$f(0) = 5 \cdot 1 = 5$$

3. Final answer

   5

答案

Question Analysis

OCR Text

o b. {y|y = } (use a comma to separate answers as needed.)
o c. {y|y ≠ } (use a comma to separate answers as needed.)
o d. {y|y < }
o e. all real numbers

the y-intercept of the function $f(x) = 5 \\cdot 8^{x}$ is . (type an integer or a decimal.)

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