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If f(x) = |x|, what is f(-3)?
If f(x) = |x|, what is f(-3)?
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Practice Questions
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Q1
If f(x) = |x|, what is f(-3)?
-3
3
0
undefined
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f(-3) = |-3| = 3.
Questions & Step-by-step Solutions
1 item
Q
Q: If f(x) = |x|, what is f(-3)?
Solution:
f(-3) = |-3| = 3.
Steps: 5
Show Steps
Step 1: Identify the function f(x) which is given as f(x) = |x|.
Step 2: Substitute -3 into the function. This means we need to find f(-3).
Step 3: Replace x with -3 in the function: f(-3) = |-3|.
Step 4: Calculate the absolute value of -3. The absolute value of a number is its distance from 0 on the number line, which is always positive.
Step 5: Since |-3| = 3, we find that f(-3) = 3.
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