Question
upstudy study bank question image url

Graph these equations: \( \begin{array}{l}x-y=6 \\ y=-2 x-3 \\ \text { (1) Click to select points on the aranh }\end{array} \)

Ask by Ortiz Mitchell. in the United States
Feb 08,2025

Real Tutor Solution

Tutor-Verified Answer

Answer

To graph the equations \( x - y = 6 \) and \( y = -2x - 3 \): 1. **Rewrite in slope-intercept form**: - \( y = x - 6 \) - \( y = -2x - 3 \) 2. **Find key points**: - For \( y = x - 6 \): - y-intercept: (0, -6) - x-intercept: (6, 0) - For \( y = -2x - 3 \): - y-intercept: (0, -3) - x-intercept: (-1.5, 0) 3. **Plot the points** on a coordinate plane and draw the lines. 4. **Find the intersection point**: - Solve \( x - 6 = -2x - 3 \) to get \( x = 1 \) and \( y = -5 \). 5. **Graph both lines** intersecting at (1, -5). This will complete the graph of both equations.

Solution

Here’s how to graph the two equations step by step. 1. Rewrite the equations if needed so they’re in slope‐intercept form (y = mx + b):   • Equation 1: x – y = 6     Solve for y:      x – 6 = y  or y = x – 6   • Equation 2: y = –2x – 3     (It is already in the form y = mx + b) 2. Identify key points for each line:   a. For y = x – 6 (Line 1):     • y-intercept: Set x = 0 → y = 0 – 6 = –6. So point (0, –6).     • x-intercept: Set y = 0 → 0 = x – 6, so x = 6. So point (6, 0).     • You can also pick another point. For example, if x = 2 then y = 2 – 6 = –4 giving (2, –4).   b. For y = –2x – 3 (Line 2):     • y-intercept: Set x = 0 → y = –3. So point (0, –3).     • x-intercept: Set y = 0 → 0 = –2x – 3, solving gives –2x = 3 so x = –3/2 or (–1.5, 0).     • Pick another point: If x = 1 then y = –2(1) – 3 = –5 yielding (1, –5). 3. Plot the points on a coordinate plane:   • For y = x – 6, plot (0, –6) and (6, 0) and draw a straight line through them.   • For y = –2x – 3, plot (0, –3) and (–1.5, 0) (or (1, –5) and (0, –3)) and draw its line. 4. Find the intersection point (optional, but useful):   Since both equations represent lines, their intersection satisfies:    x – 6 = –2x – 3    Add 2x to both sides: 3x – 6 = –3    Add 6 to both sides: 3x = 3    Divide: x = 1    Plug x = 1 into equation y = x – 6: y = 1 – 6 = –5    Thus, the two lines intersect at (1, –5). 5. Final Graph:   • Draw the first line (y = x – 6) going through (0, –6) and (6, 0).   • Draw the second line (y = –2x – 3) going through (0, –3) and (–1.5, 0) (or through (1, –5) and (0, –3)).   • Mark the intersection point (1, –5) where the two lines cross. Below is a rough sketch of the graph layout: y ↑ | / | / ← y = x – 6 0 |--------•--------→ x | (6,0) | -3 | • (0,-3) | \ | \ -5 | • (1,-5) intersection | \ -6 | • (0,-6)\ | \ ------------------------------- Note: The above sketch provides an approximate visualization. In an interactive graphing tool, click on your chosen key points to precisely see the plotted lines. By following these steps, you’ve successfully graphed both equations and determined their point of intersection.

Reviewed and approved by the UpStudy tutoring team

error msg
Explain
Simplify this solution

The Deep Dive

To graph the equations \(x - y = 6\) and \(y = -2x - 3\), start by rewriting the first equation in slope-intercept form: \(y = x - 6\). This line has a slope of 1 and y-intercept of -6. The second equation is already in slope-intercept form with a slope of -2 and a y-intercept of -3. Plotting these lines on a graph will give you their intersections at various points, showcasing how they relate. When graphing, it's helpful to identify points where the lines cross the axes. For \(x - y = 6\), you can find the x-intercept by setting \(y=0\), leading to \(x=6\) (point is (6, 0)). For the equation \(y = -2x - 3\), setting \(x=0\) gives the y-intercept at (0, -3). Plotting these points will make drawing the lines much easier and more accurate!

Try Premium now!
Try Premium and ask Thoth AI unlimited math questions now!
Maybe later Go Premium
Study can be a real struggle
Why not UpStudy it?
Select your plan below
Premium

You can enjoy

Start now
  • Step-by-step explanations
  • 24/7 expert live tutors
  • Unlimited number of questions
  • No interruptions
  • Full access to Answer and Solution
  • Full Access to PDF Chat, UpStudy Chat, Browsing Chat
Basic

Totally free but limited

  • Limited Solution
Welcome to UpStudy!
Please sign in to continue the Thoth AI Chat journey
Continue with Email
Or continue with
By clicking “Sign in”, you agree to our Terms of Use & Privacy Policy