Evaluate the function at the indicated values: (8x+1).   f(-2)

To evaluate the function \( f(x) = 8x + 1 \) at \( x = -2 \), we substitute \( -2 \) for \( x \) in the function.

\[
f(-2) = 8(-2) + 1
\]
\[
f(-2) = -16 + 1
\]
\[
f(-2) = -15
\]

So, \( f(-2) = -15 \).

Would you like further details or have any questions?

Here are 5 related questions to further explore the topic:

1. How would you evaluate \( f(3) \) for the same function \( f(x) = 8x + 1 \)?
2. If \( f(x) = 8x + 1 \), what is \( f(0) \)?
3. How do you find the slope of a linear function like \( f(x) = 8x + 1 \)?
4. What happens to the function \( f(x) = 8x + 1 \) if \( x \) is a fraction?
5. How would you determine the x-intercept of \( f(x) = 8x + 1 \)?

**Tip**: When evaluating functions, always substitute the given value for the variable and simplify step by step.

Evaluate the function at the indicated values: (8x + 1). f(-2)

Learn how to evaluate the linear function f(x) = 8x + 1 at x = -2 with a step-by-step explanation. This problem covers key algebraic concepts and function evaluation suitable for students in Grades 6-8.

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