Boyd Pollard
08/04/2024 · Elementary School
Find the \( x \)-intercept(s) and \( y \)-intercept(s) of the graph of the following. \[ y=\frac{-9 x+5}{x^{2}+9} \] If there is more than one answer, separate them with commas. Click on "None" if applicable. \( x \)-intercept(s):
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Step-by-step Solution
To find the \( x \)-intercept(s) of the graph of the function \( y = \frac{-9x + 5}{x^2 + 9} \), we set \( y = 0 \) and solve for \( x \).
The equation becomes:
\[
0 = \frac{-9x + 5}{x^2 + 9}
\]
For the fraction to equal zero, the numerator must be zero (as long as the denominator is not zero). Therefore, we set the numerator equal to zero:
\[
-9x + 5 = 0
\]
Solving for \( x \):
\[
-9x = -5 \\
x = \frac{5}{9}
\]
Thus, the \( x \)-intercept is:
\[
\left( \frac{5}{9}, 0 \right)
\]
Next, we find the \( y \)-intercept(s) by setting \( x = 0 \) in the function:
\[
y = \frac{-9(0) + 5}{0^2 + 9} = \frac{5}{9}
\]
Thus, the \( y \)-intercept is:
\[
(0, \frac{5}{9})
\]
In summary, the intercepts are:
- \( x \)-intercept(s): \( \frac{5}{9} \)
- \( y \)-intercept(s): \( \frac{5}{9} \)
So, the final answers are:
- \( x \)-intercept(s): \( \frac{5}{9} \)
- \( y \)-intercept(s): \( \frac{5}{9} \)
Quick Answer
\( x \)-intercept(s): \( \frac{5}{9} \), \( y \)-intercept(s): \( \frac{5}{9} \)
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