/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 47 Exer. \(47-48:\) If a line \(I\)... [FREE SOLUTION] | 91Ó°ÊÓ

91Ó°ÊÓ

Exer. \(47-48:\) If a line \(I\) has nonzero \(x\) - and \(y\) -intercepts a and \(b,\) respectively, then its intercept form is $$ \frac{x}{a}+\frac{y}{b}=1 $$ Find the intercept form for the given line. $$4 x-2 y=6$$

Short Answer

Expert verified
The intercept form of the given line is \( \frac{x}{\frac{3}{2}} + \frac{y}{-3} = 1 \).

Step by step solution

01

Identify the Standard Form

The given line is in the standard form: \(4x - 2y = 6\). We will start with this equation.
02

Solve for y in terms of x

Rearrange the equation to solve for \(y\): \(4x = 2y + 6\). Then, \(2y = 4x - 6\). Divide everything by 2 to isolate \(y\), getting \(y = 2x - 3\).
03

Find the x-intercept

To find the x-intercept, set \(y = 0\) and solve for \(x\): \(4x - 2(0) = 6\). Thus, \(4x = 6\). Divide by 4 to find \(x = \frac{3}{2}\). The x-intercept is \(\frac{3}{2}\).
04

Find the y-intercept

To find the y-intercept, set \(x = 0\) and solve for \(y\): \(4(0) - 2y = 6\). Thus, \(-2y = 6\). Divide by -2 to find \(y = -3\). The y-intercept is \(-3\).
05

Write the Intercept Form

With the x-intercept \(a = \frac{3}{2}\) and the y-intercept \(b = -3\), substitute these into the intercept form equation: \(\frac{x}{\frac{3}{2}} + \frac{y}{-3} = 1\). This simplifies to \(\frac{2x}{3} - \frac{y}{3} = 1\) or \(2x - y = 3\).
06

Simplify the Equation

Multiply throughout by 3 to clear the fractions: \(2x - y = 3\). This matches the intercept form.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91Ó°ÊÓ!

Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Standard Form of a Line
Let's start by understanding the standard form of a line. A line can be represented in various ways, and one of them is the standard form. The standard form is expressed as:\[ Ax + By = C \]where:
  • \( A \), \( B \), and \( C \) are constants.
  • \( x \) and \( y \) are variables representing any point on the line.
This form is practical for determining intercepts and analyzing the linear equation.The key characteristics:- **Characteristics of a line in standard form:** - Both \( A \) and \( B \) can’t be zero at the same time. - Ideally, \( A \) should be a positive integer if possible.Knowing the standard form helps in transitioning to other forms like the slope-intercept or intercept form. For example, starting with \(4x - 2y = 6\), you can quickly shift to finding the intercept form or isolate one variable to reach the slope-intercept form.
x-intercept
The x-intercept is the point where the line crosses the x-axis. At this point, the value of \( y \) is zero because it is on the x-axis.**Steps to Find the x-intercept:** 1. Begin with the equation of the line. Here, you have \( 4x - 2y = 6 \).2. Set \( y = 0 \) to determine when the line crosses the x-axis. 3. Substitute \( y = 0 \) in the equation: \[ 4x - 2(0) = 6 \] 4. Simplify to solve for \( x \).- This simplifies to \( 4x = 6 \), and dividing by 4, gives you \( x = \frac{3}{2} \).The x-intercept is \( \frac{3}{2} \), meaning the line touches the x-axis at the point \( \left( \frac{3}{2}, 0 \right) \). Knowing the x-intercept is very useful when graphing the line.
y-intercept
In contrast to the x-intercept, the y-intercept is the point where the line crosses the y-axis. Here, \( x \) is zero.**Steps to Find the y-intercept:**1. Use the line’s equation, \( 4x - 2y = 6 \).2. Set \( x = 0 \) as it is the point at the y-axis.3. Insert \( x = 0 \) into the equation, resulting in: \[ 4(0) - 2y = 6 \]4. Simplify to solve for \( y \).- This results in \( -2y = 6 \). Divide by \(-2\), leading to \( y = -3 \).Thus, the y-intercept is -3, which indicates that the line intersects the y-axis at the point \((0, -3)\). This information is crucial for drafting the intercept form.

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Study anywhere. Anytime. Across all devices.