Pregunta
Write the point-slope form of the line's equation satisfying the given conditions. Then use the point-slope form of the equation to write the slope-intercept form of the equation Slope \( =5 \), passing through \( (7,4) \)
Ask by Klein Horton. in the United States
Feb 04,2025
Solución de tutoría real
Respuesta verificada por el tutor
Responder
The point-slope form of the equation is \( y - 4 = 5(x - 7) \), and the slope-intercept form is \( y = 5x - 31 \).
Solución
Certainly! Let's work through the problem step by step.
### **Given:**
- **Slope (m):** 5
- **Point (x₁, y₁):** (7, 4)
### **1. Point-Slope Form**
The **point-slope form** of a linear equation is useful when you know the slope of the line and a point that lies on the line. The formula is:
\[
y - y_1 = m(x - x_1)
\]
**Plugging in the given values:**
- \( m = 5 \)
- \( x_1 = 7 \)
- \( y_1 = 4 \)
\[
y - 4 = 5(x - 7)
\]
This is the **point-slope form** of the equation for the line.
### **2. Converting to Slope-Intercept Form**
The **slope-intercept form** is another way to express a linear equation, and it is given by:
\[
y = mx + b
\]
where:
- \( m \) is the slope
- \( b \) is the y-intercept
Let's convert the point-slope form we found into slope-intercept form.
**Starting with the point-slope form:**
\[
y - 4 = 5(x - 7)
\]
**Step-by-Step Conversion:**
1. **Distribute the slope (5) on the right-hand side:**
\[
y - 4 = 5x - 35
\]
2. **Add 4 to both sides to solve for \( y \):**
\[
y = 5x - 35 + 4
\]
3. **Combine like terms:**
\[
y = 5x - 31
\]
Now, the equation is in **slope-intercept form**:
\[
y = 5x - 31
\]
### **Summary:**
- **Point-Slope Form:** \( y - 4 = 5(x - 7) \)
- **Slope-Intercept Form:** \( y = 5x - 31 \)
Revisado y aprobado por el equipo de tutoría de UpStudy
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Mind Expander
To write the point-slope form of the line's equation with a slope of 5 passing through the point (7, 4), you can use the formula: \( y - y_1 = m(x - x_1) \). Substituting the values, you get \( y - 4 = 5(x - 7) \). Now, to convert this into slope-intercept form (which is \( y = mx + b \)), rearrange it: \( y - 4 = 5x - 35 \) Thus, \( y = 5x - 31 \).
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