Pregunta
Find the \( x \) - and \( y \)-intercepts. \[ x=y^{2}-49 \] Write each intercept as an ordered pair. If there is more than one intercept, use the "and" button. Select "None" if applicable. Part 1 of 2 Continue
Ask by Vaughn Weston. in the United States
Jan 27,2025
Solución de tutoría real
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\( x \)-intercept: \( (-49, 0) \), \( y \)-intercepts: \( (0, 7) \) and \( (0, -7) \).
Solución
To find the \( x \)- and \( y \)-intercepts of the equation \( x = y^{2} - 49 \), follow these steps:
### **1. Finding the \( x \)-intercept:**
The \( x \)-intercept occurs where \( y = 0 \).
1. **Set \( y = 0 \) in the equation:**
\[
x = (0)^{2} - 49
\]
2. **Calculate \( x \):**
\[
x = 0 - 49 = -49
\]
**\( x \)-intercept:** \( (-49, 0) \)
### **2. Finding the \( y \)-intercepts:**
The \( y \)-intercepts occur where \( x = 0 \).
1. **Set \( x = 0 \) in the equation:**
\[
0 = y^{2} - 49
\]
2. **Solve for \( y \):**
\[
y^{2} = 49
\]
\[
y = \pm \sqrt{49}
\]
\[
y = \pm 7
\]
**\( y \)-intercepts:** \( (0, 7) \) and \( (0, -7) \)
### **Summary of Intercepts:**
- **\( x \)-intercept:** \( (-49, 0) \)
- **\( y \)-intercepts:** \( (0, 7) \) **and** \( (0, -7) \)
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Bonus Knowledge
To find the \( x \)-intercepts, we set \( y = 0 \) in the equation \( x = y^2 - 49 \). This gives us: \[ x = 0^2 - 49 \] \[ x = -49 \] So, the \( x \)-intercept is \( (-49, 0) \). Next, to find the \( y \)-intercepts, we set \( x = 0 \): \[ 0 = y^2 - 49 \] \[ y^2 = 49 \] \[ y = 7 \text{ and } y = -7 \] Thus, the \( y \)-intercepts are \( (0, 7) \) and \( (0, -7) \). In summary, the intercepts are: \( (-49, 0) \) and \( (0, 7) \) and \( (0, -7) \).
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